Possible Clues:

• Roled up in one?
• Person having fling is always acting the maggot perhaps
• Get him to play the same thing again for person having fling
• Get him to play it again for person having fling
• Always playing the same role
• Kind actors playing similar roles continually?
• Stuck playing the same roles again and again
• Always landing similar roles
• Unable to show versatility
• Role model perhaps for person having fling