slip into a role("One of the premier shape-shifters of his generation of actors, able to convincingly play an uncanny variety of characters, Paul Dano would seem to have slipped easily into yet another role: that of accomplished director." – Kenneth Turan, The Portland Press Herald, 28 Jan. 2018 VLZ_58)
be all worked up in one's part(We had just been having a long rehearsal, and the kid was all worked up in his part. He got it right first time. "Kiss Fweddie!" he shouted. (P.G. Wodehouse) – Перед этим мы долго репетировали, и малыш основательно вошёл в роль.ART Vancouver)
