stand-in

US /ˈstænd.ɪn/
UK /ˈstænd.ɪn/
"stand-in" picture
1.

controfigura, sostituto

a person who substitutes for another, especially in a performance or dangerous stunt

:
The actor had a stand-in for the dangerous car chase scene.
L'attore aveva una controfigura per la pericolosa scena di inseguimento in auto.
She worked as a stand-in for the lead singer when she was ill.
Ha lavorato come sostituta per la cantante principale quando era malata.