FESTE [as Sir Topas]: Maintain no words with him, good fellow. [As himself.] Who, I, sir? Not I, sir! God buy you, good Sir Topas. [As Sir Topas.] Marry, amen. [As himself]. I will, sir, I will.

– William Shakespeare

Twelfth Night, Act 4, Scene 2. During the cruel prank on Malvolio, the disguised Feste switches between playing himself and the fake priest Sir Tobias.