Man seen in character roles (5)
I believe the answer is:
errol
'man' is the definition.
'in character roles' is the wordplay.
'in' says the answer is hidden in the clue.
'ERROL' is hidden in the letters of 'character roles'.
'seen' acts as a link.
(Other definitions for errol that I've seen before include "- - Flynn, film star" , "-- Flynn, Hollywood actor" , "- Flynn, US film actor" , "- Flynn, twentieth century film actor" , "Old film star" .)