Chuck supports characters in the same old roles (8)
I believe the answer is:
typecast
'in the same old roles' is the definition.
(as in being typecast in similar roles)
'chuck supports characters' is the wordplay.
'chuck' becomes 'cast' (both can mean to throw).
'supports' says to put letters next to each other (bottom letters provide a support for the top ones).
'characters' becomes 'type' (I've seen this before).
'cast' put after 'type' is 'TYPECAST'.
(Other definitions for typecast that I've seen before include "engaged for similar roles" , "with no variation in roles" , "fitting a standard image" , "Always given the same sort of roles" , "Assigned the same kind of role repeatedly" .)