History Main / SeparatedAtBirthCasting

* Proof this has been going on for a while: Vicki Lawrence was cast on ''Series/TheCarolBurnettShow'' in 1967 almost entirely due to her uncanny resemblance to a younger Burnett (in Burnett's own words: "she looked more like me than I did"), as the producers were planning a recurring "Carol and Sis" sketch. Lawrence, who was 17 and had little experience with acting or sketch comedy, didn't do much besides the "Carol and Sis" sketches and musical numbers (she had been a member of the Young Americans) for the first few years, before finally coming into her own later on (most notably by playing Mama in ''[[Series/MamasFamily The Family]]'' sketches - where this trope still applies, as Burnett played Mama's daughter Eunice).

* ''Literature/Nos4a2'': Ashleigh Cummings (Vic) looks like Jason David (Vic's son Wayne) with their facial structure, eyes and hair close enough that it was quite believable she is his mother.

* ''Series/TheLordOfTheRingsTheRingsOfPower'': Both Creator/MorfyddClark and Amelie Child-Villiers bear a striking resemblance to each other as they play adult and child version of Galadriel. And despite the show taking place into a different continuity, is not too far stretched to believe that their resemblance to Creator/CateBlanchett played an important role in casting them as Galadriel.
** While, as mentioned previously, the series is in a different continuity from the Creator/PeterJackson movies, [[https://www.tvinsider.com/wp-content/uploads/2022/10/LordOfTheRings-Daniel-Weyman-NYCC-2022.jpg Daniel Weyman]] as The Stranger is so ''incredibly'' convincing as a young [[spoiler:Creator/IanMcKellen]] that many viewers guessed his true identity from Weyman's appearance alone. When he gets a chance to speak [[YouNoTakeCandle in complete sentences]] in the finale, he also utterly nails the other actor's mannerisms.
* ''Series/{{Willow}}'': Creator/ErinKellyman (Jade) and Adwoa Aboah (Scorpia) [[spoiler:play long-lost sisters]]. Both actresses are biracial and have similar enough looks that it's very plausible.

* ''Series/TheLastOfUs2023'': Many viewers noted that Creator/BellaRamsey, who plays Ellie, looks startlingly similar to Creator/AshleyJohnson who plays the character's mother (and was the voice of Ellie in [[VideoGame/TheLastOfUs the video game the series is based on]]).
* ''Series/TheSpencerSisters'': Creator/LeaThompson and Creator/StaceyFarber, who star as mother and daughter duo Victoria and Darby Spencer, [[https://www.thestar.com/entertainment/television/lea-thompson-and-stacey-farber-on-playing-two-nosy-redheads-in-ctv-series-the-spencer/article_51b8dea4-9322-5041-9e85-d8365ad55716.html strongly resemble each another]].
* ''Series/GenV'': Some people assumed that Derek Luh and London Thor (the male and female versions of SexShifter Jordan Li respectively) were brother and sister, they look so much alike.
* ''Series/TheCarolBurnettShow'': Creator/VickiLawrence was hired because she looked like a younger Burnett, which made her perfect for the "Carol and Sis" sketches.
* On the short-lived show Back to You, Laura Marano was very believable as Kelsey Grammer's daughter. However, the character was later recast with someone who less of a resemblance.
* The casting directors of ''Series/PrettyLittleLiars'' seemed to have a very good eye of casting actors who could be siblings in real life. First was Lucy Hale and Cody Christian who were very convincing as Aria and Mike Montgomery. The second case was Sasha Pieterse who bares a strong resemblance to both actors who play her siblings: Drew Van Acker and Vanessa Ray.

** Fred Stoller, who plays Ray's cousin Gerard, looks and sounds like him - which was a plot point to the episode where he first appears.

* ''Series/AgentsOfSHIELD'':
** Creator/DichenLachman, the actress cast to play Skye's mother in flashbacks, bears an incredible resemblance to her fictional daughter. [[spoiler:It gets even more impressive when Dichen Lachmann's character shows up very much alive (if not unharmed) in the present and you get to see her acting alongside her kid.]] The resemblance between her and Skye is uncanny. Creator/ChloeBennet, who's mixed-race in real life, really does look like she could be the daughter of Lachmann and Creator/KyleMacLachlan.
** Adam Faison, the TimeShiftedActor who played a young version of [[Film/{{Thor}} Agent]] [[Film/TheAvengers2012 Jasper]] [[Film/CaptainAmericaTheWinterSoldier Sitwell]] in one episode of Season 5, not only bears a jaw-droppingly [[https://vignette.wikia.nocookie.net/marvelcinematicuniverse/images/e/ef/Young_Sitwell.png/revision/latest?cb=20180401181415 close resemblance]] to [[https://vignette.wikia.nocookie.net/marvelcinematicuniverse/images/f/fa/Eob6.jpg/revision/latest?cb=20170313004235 Maximiliano Hernandez]] but manages to capture his mannerisms almost exactly.
* On the E! series ''Series/TheRoyals'', Alexandra Park, who plays Princess Eleanora, looks like she could actually be the daughter of Creator/ElizabethHurley, who plays the Queen of England.
* ''Series/OrangeIsTheNewBlack'': The show uses a lot of flashbacks, and the show is known for casting [[http://www.buzzfeed.com/scottybryan/the-child-actors-in-the-orange-is-the-new-black-flashbacks-l#.ehdoP6YOM child actors with an uncanny resemblance to their adult counterparts.]]
* On ''Series/PowerRangersTimeForce'', SixthRanger Eric Myers's actor Creator/DanSouthworth and his Japanese counterpart, Shinji Kasahara as Naoto Takizawa, look enough alike that at several points the series uses faraway shots of Naoto directly from Timeranger. Probably one of the few times-if not the only-that this happens with casting, especially with extra Rangers. Most of the time, any extra shots of Rangers in and out of morph, have to be done with either the Power Rangers actors themselves or their stunt doubles if the scene is supposed to be set in the season's CityOfAdventure unless they're doing a shot that can be taken from the season's Sentai footage.
* On ''Series/TheFosters'', actresses Creator/MaiaMitchell and Creator/BaileeMadison play half-sisters. They really [[http://www.dis411.net/wp-content/uploads/2014/10/bailee-madison-maia-mitchell-oct-15-2014.jpg look the part]].
* ''Series/StargateSG1'':
** In the episode "Fragile Balance", Michael Welch plays a teenaged O'Neill and matches Richard Dean Anderson's speech patterns and mannerisms so well that it's a bit surprising that the other characters don't believe it's him at first.
** In the episode "1969", Aaron Pearl as the young George Hammond. He looked and sounded so much like him that people were convinced that Creator/DonSDavis dubbed the voice over. He didn't.
* Late in the series ''Series/ParksAndRecreation,'' feckless layabout Jean-Ralphio Saperstein, played by Creator/BenSchwartz, introduces his twin sister, Mona Lisa, played by Creator/JennySlate, who he describes as "''the wo-o-o-orst." Despite not being related, they practically match the trope for HalfIdenticalTwins.
* French "back from the dead" show ''Series/LesRevenants'' has twin sisters as two of its main characters, Lena and Camille. One dies, but comes back to life 4 years later, when her sister is played by an unrelated actress who looks very similar, but [[http://www.purebreak.com/media/photo-les-revenants-saison-2-jerome-407467.html older and taller.]]
* ''Series/CriminalMinds'' had a flashback episode with younger versions of Gideon and Rossi. Robert Dunne was good as Rossi, but Ben Savage was spot on perfect as Gideon.
* ''Series/HouseOfCardsUS'' cast Kelly [=AuCoin=] as Doug Stamper's brother Gary due to his similar appearance to Michael Kelly.
* On ''Series/GoodEats'', John Herina had a recurring role as Alton's nephew, Elton, as well as playing a young Alton in one episode. One could easily believe them to be related in real life (Herina could easily be taken for Brown's (nonexistent) son), but they're not.
* On ''Series/EmptyNest'', Kristy [=McNichol=] and Dinah Manoff actually look like they could be sisters.
* ''Series/IronFist2017'': It's easy to believe that Ward Meachum is Harold Meachum's son, since Creator/DavidWenham (Harold) and Creator/TomPelphrey (Ward) bear similar facial features and even the same slicked-back hair.
* ''Series/Daredevil2015'':
** Skyler Gaertner, who plays young Matt Murdock as a child in season 1 and season 3 flashbacks, [[https://pbs.twimg.com/media/DA7ZqBDWAAAw6Bc.jpg does have a bit of a resemblance]] to Creator/CharlieCox.
** For "[[Recap/Daredevil2015S1E8ShadowsInTheGlass Shadows in the Glass]]", the flashbacks to Wilson Fisk's childhood run on this. Cole Jensen, who plays the young Fisk, bears resemblance to one of Creator/VincentDOnofrio's sons. Meanwhile, Fisk's father is played by Dominick Lombardozzi, whose resemblance to D'Onofrio is very apparent you compare photos of Fisk to photos of bald-headed Lombardozzi from his days as Herc in ''Series/TheWire''.
** Peter Halpin, who plays Foggy Nelson's brother Theo in season 3, bears a strong resemblance to one of Creator/EldenHenson's brothers. His hairstyle also clearly evokes Foggy's hairstyle from seasons 1 and 2.
* In ''Series/MysteryScienceTheater3000'', the character of Synthia was created because Rebecca Hanson resembled a young Pearl Forrester, who was played by Mary Jo Phel.
* On ''Series/StrangerThings'', Noah Schnapp (Will Byers) could easily pass as Creator/WinonaRyder's (Joyce Byers) real-life son with their shared brown doe eyes, straight brown hair, pale skin, and nose shapes. Charlie Heaton (Jonathan Byers) also looks very believable as Joyce's son and Will's older brother, sharing Schnapp and Ryder's brown hair (and similar haircuts) but also clearly taking heavily after his estranged dad Lonnie (Ross Partridge.) Heaton and Schnapp also have fairly similar voices with their soft-spoken, gentle tones, more apparent in season 3 after Will's voice cracks.
* ''Series/{{Skins}}'':
** Creator/NicholasHoult and Kaya Scodelario are ''very'' convincing on-screen siblings with those IcyBlueEyes, [[RavenHairIvorySkin their pale skin and dark hair]] and as a credit to their acting, they manage to have also the same mannerisms.
** Chris' father is played by Mark Heap, who definitely looks like Creator/JoeDempsie, as Jal [[LampshadeHanging lampshades]] in-universe.
* On ''Series/ArrestedDevelopment'', Creator/IslaFisher plays Creator/RonHoward's fictional illegitimate daughter Rebel Alley. Fisher looks enough like Howard's real-life daughters Creator/BryceDallasHoward and Paige Carlyle Howard that it makes it look believable.
* On ''Series/ChillingAdventuresOfSabrina'', the title character is played by Creator/KiernanShipka, but during a Christmas episode flashback, she is played by 12-year-old Creator/MckennaGrace, who looks so much like Shipka she might as well be her clone.
** Mckenna Grace falls under this trope quite a bit, playing many TimeShiftedActor roles in both live-action film and TV.
* ''Series/MidnightCaller'': Scott Valentine, who plays Jack's younger brother Frankie, bears an uncanny resemblance to Gary Cole.
* ''{{Series/Manifest}}'': Creator/LunaBlaise (Olive) and Jack Messina (Cal) really do look a lot like Athena Karkaris as their on-screen mom Grace. To a lesser extent they also resemble Creator/JoshDallas as well, who plays their dad Ben. You can believe that these kids could be their real children more than most castings.
* ''Series/Batwoman2019'': Dougray Scott bears a fair amount of resemblance to Creator/RubyRose. Creator/RachelSkarsten is also believable in playing his daughter/her sister. Creator/WallisDay, who replaced Rose as Kate, is also close in looks to Scott and Skarsten.
* On one of Music/JohnDenver's TV specials, Creator/DickVanDyke performed a magic trick that shrunk Denver into a little boy. The boy was played by [[Series/TheBradyBunch Cousin Oliver himself]], Robbie Rist, whose straight blond hair and round-framed glasses were as iconic as Denver's own.
* Proof this has been going on for a while: Vicki Lawrence was cast on ''Series/TheCarolBurnettShow'' in 1967 almost entirely due to her uncanny resemblance to a younger Burnett (in Burnett's own words: "she looked more like me than I did"), as the producers were planning a recurring "Carol and Sis" sketch. Lawrence, who was 17 and had little experience with acting or sketch comedy, didn't do much besides the "Carol and Sis" sketches and musical numbers (she had been a member of the Young Americans) for the first few years, before finally coming into her own later on (most notably by playing Mama in ''[[Series/MamasFamily The Family]]'' sketches - where this trope still applies, as Burnett played Mama's daughter Eunice).
* ''Literature/Nos4a2'': Ashleigh Cummings (Vic) looks like Jason David (Vic's son Wayne) with their facial structure, eyes and hair close enough that it was quite believable she is his mother.

* In the final season of ''Series/TheBigBangTheory'' when they decided to finally introduce Sheldon's brother George Jr, or "Georgie" they cast Creator/JerryOConnell, who does look like an older Montana Jordan, who plays the character on ''Series/YoungSheldon.''
* ''Series/{{Rake}}'': Kate Box plays Nicole, while Celia Pacquola later appears as her sister Nadia in one episode. They look very similar, making it extremely believable.
* ''Series/TheFlash2014'':
** The resemblance between Sean Poague (Accelerated Man) and Creator/TeddySears (Hunter Zolomon) is so strong that some think Accelerated Man is a good twin of Hunter Zolomon.
** Creator/JessicaParkerKennedy, who plays Barry and Iris' daughter Nora, looks incredibly similar to both her on-screen parents Creator/GrantGustin and Creator/CandicePatton. Patton has stated in interviews that both she and Kennedy have even been mistaken for one another on set due to their voices also sounding incredibly alike.
* ''Series/{{Heroes}}'':
** Creator/AdrianPasdar auditioned to play Creator/MiloVentimiglia's father in the proposed ''Series/GilmoreGirls'' spin-off. The casting director at the time made the comment that Adrian could pass for Milo's brother because of their strong resemblance.
** Creator/HaydenPanettiere looks close enough her onscreen birth parents Creator/AdrianPasdar and Jessalyn Gelsig she's wholly believable as their child.
* ''Series/{{Rizzoli And Isles}}'':
** Creator/SashaAlexander is 100% believable as the child of Creator/SharonLawrence and Creator/JohnDoman. It's noted in universe that she looks just like Lawrence and, while unremarked upon in universe, she and Doman have remarkably similar facial structures.
* ''Series/{{Bridgerton}}'':
** The actors cast to play Daphne's four brothers, Anthony, Benedict, and Colin Bridgerton all look similar enough to convincingly pass as brothers. In fact, some viewers even [[https://www.tvguide.com/news/the-essential-bridgerton-guide-to-telling-daphnes-brothers-apart/ have trouble telling them apart.]]
** The prequel ''Series/QueenCharlotteABridgertonStory'' cast India Amarteifio as a young Queen Charlotte, who is played in the series by Golda Reshuevel. The resemblance is ''uncanny'', right down to the characters' mannerisms.
* ''Series/{{Shadowhunters}}'': Creator/EmeraudeToubia, Creator/MatthewDaddario and Creator/NicolaCorreiaDamude all look similar enough it's very believable they're relatives.
* ''Series/That70sShow'':
** In the episode "Backstage Pass", [[RashomonStyle Red and Kitty Forman argue about how they first met one another]]. The actors who play them in the flashback scenes, Corey Landis and Ashley Peldon, respectively, each strongly resemble Creator/KurtwoodSmith and Creator/DebraJoRupp, with Peldon perfectly recreating Rupp's SignatureLaugh as Kitty.
** In the SequelSeries ''Series/That90sShow'', Callie Haverda as Leia Forman has an incredibly strong resemblance to her on-screen father, Creator/TopherGrace. Meanwhile, Mace Coronel as Jay Kelso looks remarkably like the actors of his on-screen parents, Creator/AshtonKutcher (Michael Kelso) and Creator/MilaKunis (Jackie Burkhart); even having a similar facial structure as Kutcher and hair color and lips as Kunis.
* ''Series/RoswellNewMexico'': Creator/JeanineMason and Creator/AmberMidthunder look enough alike that they're completely believable in playing sisters.
* In ''Series/BrooklynNineNine'', Winston Story has a recurring role as Bill, a male prostitute with an uncanny resemblance to Charles Boyle, played by Creator/JoeLoTruglio. Other characters sometimes refer to Bill as "fake Boyle," and the resemblance is often exploited for plot purposes.

* ''Series/TheLWord'': Max's sisters Maggie and Sioban are played by actresses who look close enough to his actor (plus each other) that one can easily believe they're all siblings.
* ''Series/TheExpanse'': Jasai Chase Owens plays the son of characters played by Creator/DominiqueTipper and Keon Alexander and manages to be a dead ringer for both of them. If you ran into [[https://i.imgur.com/0G1MHLW.png these three]] in person, would you doubt that the guy on the left was the child of the other two?

* ''Series/TheUntamed'':
** Although they were cast as either uncle and nephew or father and son, the resemblance between actors Qi Peixin (Jin Ling), Zhu Zanjin (Jin Guangyao), and Cao Yuchen (Jin Zixuan) is so uncanny that -- given their ages in RealLife -- you'd expect all three of them to be long-lost ''brothers''.
** Ji Li (Nie Huaisang) and Wang Yizhou (Nie Mingjue) have such similar facial features that from appearance alone, they can convince any unknowing passerby that they really are brothers.

* ''Series/Dark2017'', considering its plot is set around time travel, has too many of this to count. Many of the {{Timeshifted Actor}}s playing younger and older versions of the same characters very strongly resemble each other. For example, Winfried Glaizer [[https://pbs.twimg.com/media/ELw0u6_XUAAcntn.jpg is incredibly convincing]] as an older Creator/OliverMasucci (Ulrich) due to their similar cheekbones and facial structure, while Béla Gabor Lenz is [[https://i.insider.com/5ef40927988ee35b6046ea43?width=600&format=jpeg&auto=webp instantly recognizable]] as the younger self of Peter Benedict (Aleksander).
* The Mitchell brothers in ''Series/EastEnders''.
* The character of Niles on ''Series/{{Frasier}}'' was created after producers noticed David Hyde Pierce's uncanny resemblance to a younger Creator/KelseyGrammer.
* On ''Series/{{Glee}}'':
** A flashback depicted Kurt as a young adolescent. Adam Kolkin, the actor chosen to portray the younger Kurt bears an uncanny resemblance to a younger Creator/ChrisColfer (as pictured above right).
*** Kolkin played a young Colfer again in ''Struck by Lightning''.
** The character of Shelby Corcoran (Creator/IdinaMenzel) is the mother of the character Rachel Berry (Creator/LeaMichele). Menzel was presumably cast due, in part, to [[http://ll-media.tmz.com/2009/09/15/0910_lea_idina-1.jpg her striking resemblance to Michele.]]
* Younger versions of Sam and Dean of ''Series/{{Supernatural}}'' [[http://images2.fanpop.com/image/photos/14400000/Weechester-the-weechesters-14402373-600-395.jpg nicknamed the Weechesters]] tend to look quite a bit like them, especially when the age gap is smaller. It's not incredibly hard to find a mop-top and [[AscendedMeme chisel-chest]], but it helps when they actually get the demeanors down too.

* ''Series/QuantumLeap'' and its [[Series/QuantumLeap2022 sequel series]]:
** Jamie Walters, who plays a younger version of Al Calavicci, looks convincingly like a young Creator/DeanStockwell.
** Janis Calavicci's actor Creator/GeorginaReilly believably looks like she could be the daughter of Creator/DeanStockwell (Al) and Creator/SusanDiol (Beth).
** Creator/CaitlinBassett (Addison) looks like she could be related to her onscreen father Creator/BrandonRouth.
* In the made-for-TV film ''Hawking'', Creator/StephenHawking (Creator/BenedictCumberbatch) and the actors who play his parents seriously look like they could actually be related.
* Lori Loughlin and Shenae Grimes on ''Series/NineOhTwoOneOh'' play a mother and daughter that actually look alike.
* Creator/GeneWilder had a short-lived sitcom called ''Series/SomethingWilder'' in the mid-Nineties where he played father to two little boys. One of whom was virtually a miniature clone of him.
* The brothers Hank and Evan Lawson on ''Series/RoyalPains''. They're supposed to be New York Jews; while Mark Feueurstein is Jewish and from NYC, Paulo Costanzo is from Toronto and is of Italian descent.
* Malese Jow looks so much like Music/MirandaCosgrove that Malese was chosen to play [[Series/ICarly Carly's]] lookalike in "iLookalike". Same with JadinGould, who played the young Carly.
* Lachlan Nieboer, who played Gray, Jack Harkness's brother on ''Series/{{Torchwood}}'', looked and sounded like a younger version of Creator/JohnBarrowman, despite not being related.
* ''Series/OnceUponATime'' does this excellently.
** Creator/GinniferGoodwin from ''Series/BigLove'' and Creator/JenniferMorrison from ''Series/{{House}}'', two actresses who for years people have said shared a resemblance and have often been confused with each other, are now playing mother and daughter. In the commentary on a season one ''[=OUAT=]'' episode, Ginnifer Goodwin said that they were mistaken for each other so often that they both, completely independently of each other, just gave up and started signing autographs and giving interviews as each other.
** Whatever features Morrison doesn't share with Goodwin, she seems to share with Creator/JoshDallas, her onscreen father.
** Creator/BaileeMadison played Goodwin's character as a child and the actress could easily pass for Goodwin's daughter or young sister. She also nailed some of her mannerisms.
** And with Rena Sofer was cast as Snow's mother, it's easy to note how much she looks like Goodwin.
** Creator/RoseMcGowan plays Young Cora and bears a striking resemblance to Creator/BarbaraHershey, as well as nailing Cora's haughty demeanor.
** Creator/KristinBauer also looks enough like Creator/AngelinaJolie to almost provide a sense of continuity with the [[Film/{{Maleficent}} live-action Maleficent film]].
** The actresses who play Emma as a child and teenager are dead ringers for Morrison, especially Abby Ross as teenaged Emma.
* The boys playing a young Earl and Randy on ''Series/MyNameIsEarl''.
* Creator/CharismaCarpenter and Alexandra Chando on ''Series/TheLyingGame''.
* Creator/AndreaBrooks, who plays the teenage version of Amelia on ''Series/TheSecretCircle'', looks likes she could be Creator/BrittRobertson's twin.
* Elizabeth Penn Payne, the Masked Woman (aka [[spoiler: Alexis Meade]]) on ''Series/UglyBetty'' has nearly the exact same eyes as [[spoiler: Creator/RebeccaRomijn]].
* On ''Series/EightSimpleRules'', Martin Spanjers and Amy Davidson, who play brother and sister, look like they actually could be (contrast Creator/KaleyCuoco as their other sibling, who looks nothing like them ''or'' either of the parents: Creator/JohnRitter and Creator/KateySagal).
* ''Series/FullHouse'': Creator/CandaceCameronBure (DJ) and Creator/JodieSweetin (Stephanie) resemble each other enough that they easily pass for sisters.

* In the episode Midvale in ''Series/{{Supergirl|2015}}'' the girls who play younger Creator/MelissaBenoist and Creator/ChylerLeigh look exactly like smaller and younger versions of them.
* Sal Barone, the original actor for D.J. on ''Series/{{Roseanne}}'', left the show after the pilot, for various reasons; but what sealed the deal in casting Creator/MichaelFishman as his replacement was that he looked just like Roseanne Barr. (The resemblance is so strong that even Dan remarks on it in-universe, as if children looking like their parents is in any way unusual.)

* On ''Series/LastManStanding'', the actresses who played the Baxter daughters in season one (Alexandra Krosney, Molly Ephraim, and Creator/KaitlynDever) all look alike. Beginning in season two, Krosney (Kristin) was replaced by Amanda Fuller who does not resemble the other two as much. One Halloween episode features Ephraim and Dever dressing up as each other's characters and you can almost not tell the actresses switched roles.
* From ''Series/{{NCIS}}'', Abby (Pauley Perrette, who apparently invokes this trope) and her brother (Daniel Rivas) were literally separated at birth in-universe, while the actors are childhood friends who were often mistaken for being related in RealLife. The resemblance is especially striking in their eyes.

* Creator/ElizaCoupe and Creator/ElishaCuthbert as sisters Jane and Alex Kerkovich on ''Series/HappyEndings''.
* ''Series/DowntonAbbey'' is noted for its excellent casting in this respect:
** The resemblance between Lady Cora Crawley and her on-screen daughter Lady Mary is quite strong, especially considering that Creator/ElizabethMcGovern is American with no recent British relations while Michelle Dockery is English (although her father is Irish).
** Tom Branson and his older brother Kieran have the same hair and similar facial features; Allen Leech and Ruari Conaghan are not related.
* ''Series/{{Scrubs}}'': Creator/ZachBraff and Creator/TomCavanagh look so alike that it is easy to believe them as brothers. Same goes for their on-screen father, Creator/JohnRitter.
* Exploited on ''Series/GilmoreGirls'' as Lauren Graham and Alexis Bledel play mother and daughter. Lorelai and Rory have been mistaken for sisters in-universe. According to creator Amy Sherman-Palladino, she cast Graham based on the fact that she perfectly exemplified Sherman-Palladino's vision for Lorelai in terms of personality, and Bledel had a bit of an attitude during one of her callbacks (due to being sick at the time) that Sherman-Palladino quite enjoyed. The fact that they look nearly identical was just a bonus, with Sherman-Palladino herself chalking it up to "pixie dust".
** And whatever Rory doesn't get from Lorelai, such as her coloring, she gets from her dad, played by David Sutcliffe. This is discussed in a season one episode.
* ''Series/{{Lost}}'':
** Sterling Beaumon, who plays young Ben Linus, bears an uncanny resemblance to Creator/MichaelEmerson.
** Likewise Emily Rae Argenti, who plays a ten year old Kate in "[[{{Recap/LostS05E16And17TheIncident}} The Incident]]", looks very like Creator/EvangelineLilly.
** Creator/MiraFurlan (Danielle) and Creator/TaniaRaymonde (Alex) are very believable as mother and daughter.

* ''Series/EverybodyLovesRaymond'':
** Creator/RayRomano and Creator/BradGarrett on could so easily be brothers in real life. It helps that both stand well over six feet tall, Garrett (Robert Barone) exceptionally so. In an episode where Romano plays a younger version of the Barones' father, Frank, in a "flashback" scene, he is exceptionally convincing as a younger version of Peter Boyle, who played Frank. In the same flashback, the actor playing young Robert pulls off an incredibly convincing young Garrett.
** Fred Stoller, who plays Ray's cousin Gerard, looks and sounds like him - which was a plot point to the episode where he first appears.
** Averted with Madylin, Sullivan, and Sawyer Sweeten, the real-life siblings who play Ray and Debra's kids, a group of blondes to Ray Romano and Patricia Heaton's brunettes, which became a joke to the cast.
--->'''Robert/Brad''': Hahaha, they still don't look like either of ya!
* While most of the time the casting agency doesn't bother with accuracy for the various historical figures featured on ''Series/LegendsOfTomorrow'', Lovell Adams-Gray is a dead ringer for a young UsefulNotes/BarackObama, and his voice is a damn-near perfect impersonation.
* ''Series/ModernFamily'':
** Creator/SarahHyland and Creator/ArielWinter, otherwise known as the Dunphy sisters both bear a strong resemblance to Creator/TyBurrell, their on-screen dad. While Hyland and Winter don't look that much alike (mostly due to Hyland's darker skin tone), they ''sound'' nearly identical.
** Likewise, Creator/TyBurrell bears a strong enough resemblance to Fred Willard that they can realistically portray a father and son.
* Not only does Creator/TraceyGold of ''Series/GrowingPains'' look like she could believably be Kirk Cameron's sister, but she also looks like Kirk's actual sister, Creator/CandaceCameronBure.
* ''Series/GameOfThrones'':
** Creator/NatalieDormer looks enough like a young Creator/DianaRigg that they could realistically play grandmother and granddaughter on the show.
** Likewise, Creator/FinnJones and Creator/NatalieDormer could pass for [[http://primetime.unrealitytv.co.uk/wp-content/uploads/2015/05/game-of-thrones-margery-loras-555x325.jpg brother and sister]] in real life, despite not being related.
** Creator/EmiliaClarke and Creator/HarryLloyd as siblings Daenerys and Viserys Targaryen have an uncanny similarity. It's partially the wigs though. The white hair masks the differences in complexion between them that would normally be more apparent. The difference in height between them is also more dramatic in real life than it appears on camera. Still, even without the wigs they could pass for siblings.
** Creator/PilouAsbaek (Euron Greyjoy) and his on-screen nephew Creator/AlfieAllen (Theon Greyjoy) also bear an uncanny resemblance. More than a few viewers and reviewers agreed that Euron pretty much looks like Theon but about 15 years older and after having put about 25-30 pounds onto Theon's rather lanky frame.
** Creator/JackGleeson (Joffrey Baratheon) bears a strong resemblance to Creator/LenaHeadey (Cersei Lannister), his on-screen mother, especially in terms of their facial structure. In-story, this is pronounced because Joffrey is the product of incest between HalfIdenticalTwins. Once Cersei cuts her hair in season 5, the resemblance becomes even more apparent.
** All over the place in the Stark family, depending on who takes after whom:
*** Creator/MichelleFairley and Creator/SophieTurner as mother and daughter Catelyn and Sansa Stark. When Petyr Baelish says Sansa looks just like a younger Cat, with the traditional House Tully appearance (red hair, porcelain skin, elfin features, and big blue eyes, etc.), the audience can definitely agree with that assessment. Fairley also bears some resemblance to Creator/KateDickie, who plays Catelyn's sister Lysa Arryn (as seen [[https://i.pinimg.com/originals/e5/60/47/e56047e823ffa41e9c44d1c0be07ce65.jpg here]]).
*** Creator/RichardMadden (Robb Stark) and his in-show half-brother [[spoiler:(who is later revealed to actually be his cousin)]] Creator/KitHarington (Jon Snow) look similar enough that a common criticism of the first few episodes is that it's hard to tell which is which when they're in the same scene.
*** Creator/MaisieWilliams (Arya Stark) and Creator/IsaacHempsteadWright (Bran Stark), who play the younger Stark siblings, have very similar facial features, particularly high cheekbones, long noses and bushy eyebrows, as well as sharing Madden and Harington's dark hair and pale skin which is acknowledged in-universe as the signature Stark look.
*** Robb and Bran's looks are actually a change from the books where only Jon and Arya look alike in inheriting the Stark long face and coloring, while Robb and Bran have Catelyn's Tully features and look more like Sansa and Rickon. Notably, Catelyn is resentful that Ned's illegitimate son looks more like him than any of the trueborn sons she bore, and Arya feels like an outcast partially because she has inherited the Stark look while her other siblings, except for Jon (Ned Stark's son by [[MissingMom another woman]]), have all inherited the Tully look.
*** When she finally appears in flashbacks portrayed by Aisling Franciosi, Ned's sister Lyanna Stark bears a striking resemblance to [[spoiler:her son]] Jon Snow. Also, she has facial traits [[http://pm1.narvii.com/6143/ecf4f10095bded37b616cfe6eb03c6a5fe061d76_hq.jpg very reminiscent of Maisie Williams']], who in the books is said to be Lyanna's spitting image.
** Creator/GethinAnthony (Renly Baratheon) and Creator/JoeDempsie (Gendry) also bear more than a passing resemblance to one another, with their characters having inherited the trademark Baratheon TallDarkAndHandsome look. In fact, in the books, Brienne at one point mistook Gendry for Renly.
** The [[TimeShiftedActor younger version]] of Ned Stark. The showrunners searched high and low for an actor who could play a young Creator/SeanBean, and found it with [[https://images.hellogiggles.com/uploads/2016/06/29063144/ned.jpg Robert Aramayo]].
* The casting department on ''Series/PeakyBlinders'' really must be commended. Creator/CillianMurphy, Paul Anderson, and Joe Cole as the three eldest Shelby brothers all share the same blue eyes and jawline, and Anderson, in particular, is a dead ringer for a younger Tommy Flanagan, who plays their father. Among the ladies, Helen [=McCrory=] and Sophie Rundle could play mother and daughter, not aunt and niece, and they both share similar features with the men of the family. Youngest Shelby brother Finn as played by Alfie Evans-Meese wasn't as close a fit, resemblance-wise, but [[http://www.birminghammail.co.uk/whats-on/arts-culture-news/schoolboy-harry-kirtons-delight-peaky-6802957 Harry Kirton]] as the teenage Finn looks ''exactly'' like Cole.
* ''Series/{{Charmed|1998}}'':
** Emmalee Thompson plays Prue as a young child in three episodes. The resemblance between her and Creator/ShannenDoherty is striking -- they even have the same smile. Creator/JenniferRhodes, who plays the grandmother Penny, also looks incredibly like Doherty.
** Meanwhile, Creator/FinolaHughes plays the girls' mother Patty. She has quite the resemblance to her onscreen youngest daughter Creator/AlyssaMilano, especially when Phoebe's hair is long and light brown.

* In the ''Series/SilentWitness'' story "A Body of Work", one plotline featured Harry's old college girlfriend and her [[spoiler: son, who bore a distinct resemblance to Harry. Harry turned out not to be the father, but they looked enough alike that the prospect was thoroughly believable.]]

* In TheFilmOfTheBook ''Literature/NeverLetMeGo'', the kids who play the young versions of Kathy, Ruth, and Tommy look eerily like the older actors, [[http://www1.pictures.zimbio.com/gi/Never+Let+Go+Premiere+54th+BFI+London+Film+luwIJsCErmZx.jpg particularly]] Isobel Meikle-Small as a younger Creator/CareyMulligan and Ella Purnell as a younger Creator/KeiraKnightley.

* The casting directors of Pretty Little Liars seemed to have a very good eye of casting actors who could be siblings in real life. First was Lucy Hale and Cody Christian who were very convincing as Aria and Mike Montgomery. The second case was Sasha Pieterse who bares a strong resemblance to both actors who play her siblings: Drew Van Acker and Vanessa Ray.

** Creator/ChrisPine, who played James Kirk, and Creator/ChrisHemsworth, who played his father George towards the beginning, looked so much alike that according to Abrams, some viewers mistakenly believed Pine played both characters.

* ''Series/FullHouse'':
** Averted, as the three girls (all blonde) look more like the blond Dave Coulier, who plays the unrelated Joey, than either Danny (their father) or Jesse (their uncle). The girls are said to take after their blonde mother, Pam, who is Jesse's sister.
** Continued as when Jesse's sons are born, they are blond -- again, looking more like the blond Joey.
** However, played straight by Creator/CandaceCameronBure (DJ) and Creator/JodieSweetin (Stephanie), who resemble each other enough that they easily pass for sisters.

* ''Series/{{Bridgerton}}'': The actors cast to play Daphne's four brothers, Anthony, Benedict, and Colin Bridgerton all look similar enough to convincingly pass as brothers. In fact, some viewers even [[https://www.tvguide.com/news/the-essential-bridgerton-guide-to-telling-daphnes-brothers-apart/ have trouble telling them apart.]]

* In ''Film/{{Mermaids}}, '' Music/{{Cher}}'s character has two daughters played by Creator/WinonaRyder and Creator/ChristinaRicci. It's the ultimate EeriePaleSkinnedBrunette family.

* Jamie Walters as the younger version of Creator/DeanStockwell's character Al Calavicci in ''Series/QuantumLeap''.
** The [[Series/QuantumLeap2022 sequel series]] introduces Janis Calavicci, one of Al and Beth's daughters. Janis' actor Creator/GeorginaReilly believably looks like she could be the daughter of Creator/DeanStockwell and Susan Diol.