A prop is something an actor, whether In-Universe or Real Life, physically holds or interacts with in a production. Actors use props to connect their performances to reality which helps establish Willing Suspension of Disbelief for the audience.
TV Tropes - Production Foreshadowing tvtropes.org/Main/ProductionForeshadowing
The Amazing Digital Circus (Web Animation) - TV Tropes
Parody Product Placement - TV Tropes
Who Framed Roger Rabbit / Characters - TV Tropes Roger rabbit, Rabbit cartoon, Jessica rabbit cartoon
The Show Must Go Wrong - TV Tropes
Just a Face and a Caption: Living Prop - TV Tropes Forum
Cuphead / Funny - TV Tropes
Close Range Combatant
Uncredited Role - TV Tropes, qui gon jinn mbti
Suddenly Obvious Fakery - TV Tropes
Prop Recycling - TV Tropes