body double
noun
University
1
A film stand-in for an actor, in scenes not involving the face, especially during scenes of nudity, or of dangerous activity.
2
A political decoy; a person employed to impersonate a politician, in order to draw attention away from the real person or to take risks on their behalf.
3
A person who is present nearby — or virtually connected to — a person with ADHD in order to increase their attention and focus.