When he signed his school yearbook, he signed not only his name, but the names of all the characters he portrayed in school plays.
But I did a Christmas card where I portrayed both Michelle and Barack Obama.
Continuity is lax: some actors play several characters; other roles are portrayed by multiple actors.
mid-13c., "to draw, paint" (something), from Anglo-French purtraire, Old French portraire "to draw, to paint, portray" (12c.), literally "trace, draw forth," from por- "forth" (from Latin pro-; see pro-) + traire "trace, draw," from Latin trahere "to drag, draw" (see tract (n.1)). Meaning "depict in words, describe" is from late 14c. Related: Portrayed; portraying.