* ActorAllusion: A possible one, to Goren being [[Film/FullMetalJacket in the military.]]
* ChannelHop: From [=NBC=] to [=USA=] with Season Seven.
* ColbertBump: Goldblum shamelessly plugged the show on ''Series/TheColbertReport'', and Stephen Colbert himself guest starred in Season 3.
* TheDanza: James "Jamey" Sheridan as Capt. James Deakins.
* HeyItsThatGuy: [[Film/FullMetalJacket Private Pyle]] is Goren, [[Series/{{Oz}} Shirley Bellinger]] is Eames, [[TheStand Randall Flagg]] is Deakins, [[Series/SexAndTheCity Mr. Big]] is Logan, [[Film/TheFly Seth Brundle]] is Nichols, and [[http://www.imdb.com/title/tt0114781/combined Travis Dane]] is Ross.
** [[TheOffice Jim Halpert]] is one of the [[DawsonCasting high school]] basketball players in "Mad Hops".
** Both [[PerfectStrangers Cousin Larry]] and [[PerfectStrangers Balki]] have appeared on different episodes of the show.
** Tobias Beecher from ''{{Oz}}'' has appeared on the episodes "Baggage" and "30" as different characters.
** None other than [[Series/TheColbertReport Stephen Colbert]] showed up in Season 3.
** [[BarneyMiller Barney Miller]] and [[Film/GoneBabyGone Helene McCready]] played father and daughter in the episode "Suite Sorrow".
** [[Film/{{Jaws}} Chief Brody]] played a serial killer who turned out be [[spoiler:Goren's biological father.]]
** Anita from ''WestSideStory'' is Goren's schizophrenic mother.
** [[Film/{{Ghost}} Carl Bruner]] is Goren's drug-addict brother.
** John Locke and Ben Linus from ''Series/{{Lost}}'' have shown up on different episodes.
** [[Series/FamilyTies Steven Keaton]] appeared in Season 1 as a weirdo who tried to win over Stephanie Seymour with murder.
** [[Series/NurseJackie Sarah Khouri]] was Goren's shrink.
** [[TheWonderYears Karen Arnold]] was Nicole Wallace.
** "Watch your backs, S and B - [[GossipGirl Georgina Sparks]] wants to be a WebVideo/{{lonelygirl15}} {{Expy}}..."
** [[DoogieHowserMD Doogie Howser]] was a Jeffrey Dahmer-esque killer in the episode "Want"
** [[Film/TheMummyTrilogy Beni]] appeared alive and well in the Season 5 episode "Grow".
** [[TrueBlood Sam Merlotte]] pop ups in Season 8. And no, he doesn't get naked.

* RetroactiveRecognition: [[Series/{{Glee}} Will Schuester]] is Chance in "Proud Flesh".