title role
US /ˈtaɪ.təl ˌroʊl/
UK /ˈtaɪ.təl ˌroʊl/

1.
papel principal, papel-título
the role in a play or film that gives it its name
:
•
She landed the title role in the new Broadway musical.
Ela conseguiu o papel principal no novo musical da Broadway.
•
He is famous for his portrayal of the detective in the title role.
Ele é famoso por sua interpretação do detetive no papel principal.