out of character
- (idiomatic) Inconsistent with one's personality, disposition, or usual expected behaviour.
- The burst of anger was out of character for the normally placid boy.
2012 April 29, Nathan Rabin, “TV: Review: THE SIMPSONS (CLASSIC): “Treehouse of Horror III” (season 4, episode 5; originally aired 10/29/1992)”:
- In “Treehouse Of Horror” episodes, the rules aren’t just different—they don’t even exist. If writers want Homer to kill Flanders or for a segment to end with a marriage between a woman and a giant ape, they can do so without worrying about continuity or consistency or fans griping that the gang is behaving out of character.
- (idiomatic, drama) Not in character; not successfully performing within the mindset of a given character in a theatrical performance. See also break character, drop character.
- I was out of character for most of the first act because those people in the third row wouldn't stop chatting.
- (idiomatic, drama, role-playing games) Not acting; not "on"; behaving within one's natural personality rather than that of a character, or taking actions entirely outside the fictional context.
- After watching him perform so energetically, it is a bit of a trip to hang out with him when he's out of character. In real life, he's really mellow.
- Susan asked the GM, out of character, whether she was able to sense magic in the room.
not consistent behaviour
- (idiomatic) In a manner inconsistent with one's usual and expected personality or behavior.
- (idiomatic, drama, role-playing games) Away from the mindset, personality, or behavior assumed for a role that an actor is rehearsing or performing, or that a player is playing.
- He has the uncanny ability of getting in and out of character within a split second.
- The comedian stepped out of character to mug directly to the audience.