Tropes about characters who look a lot like other characters, or even real-world people. The resemblance may have a logical explanation or it may just be a coincidence.
A character who is deliberately impersonating another character doesn't count. For simplicity's sake, we'll also leave out characters that have been "duplicated" by some means; we can just assume that they look the same. (This includes clones, twins, past/future selves, etc.) If you're interested in any of those scenarios, see the Doppelgänger index.
- Acting for Two: Of course the characters look alike, they're played by the same person!
- Celebrity Resemblance: When another character in the story notices that an ordinary person looks like a celebrity.
- Comic-Book Fantasy Casting: Drawn or animated characters are made to look like a real-world celebrity.
- Family Eye Resemblance: Family members may look different in other ways, but their eyes look alike.
- Generic Cuteness: Most characters in a drawn or animated work look alike because the artist used a default "cute" aesthetic.
- Identical Grandson: Descendants look just like their ancestors.
- Identical Stranger: Two unrelated people who look exactly alike.
- Inexplicably Identical Individuals: People who look, talk, and act exactly alike, with no plausible explanation.
- Ink-Suit Actor: Animated characters look like the actors who play them.
- Look-Alike Lovers: A pair of lovers look a lot more similar than you would expect.
- Only One Female Mold: In a drawn or animated work, all female characters look identical from the neck down.
- Only Six Faces: Characters in a drawn or animated work look alike because the artist only used one or a few "default" face designs.
- Prince and Pauper: Two unrelated characters look similar enough to secretly swap places.
- Resemblance Reveal: Surprise! They look like someone you already know!
- Separated-at-Birth Casting: Two actors cast as relatives look a lot alike, despite not actually being related.
- Strong Family Resemblance: Family members look like each other.
- Textual Celebrity Resemblance: In a non-visual work, the narration explicitly states that a character looks like a certain celebrity.
- Uncanny Family Resemblance: Family members look more like each other than logic would permit.
- Uncatty Resemblance: Pets and their owners look alike.
- You ALL Look Familiar: Video game characters look alike because it's easier to build a game that way.
- You Remind Me of X: In cases where the commented-upon similarity is wholly or partly physical (as opposed to similar actions/values/personality traits).