Possible Clues:

• Get similar parts from stamp company
• Unable to show versatility, maybe
• Hot metal process inhibits versatility
• Example found to make actor repeat himself ...
• Always given the same sort of roles
• Petty criminal pockets endless money, acting predictably
• Do some work in the pool with dramatis personae given the same kind of role
• Model found to be lacking original parts
• Stereotyped, given the same kind of role
• Assigned the same kind of role repeatedly