Throw; group of actors (4)
I believe the answer is:
cast
This clue is a double definition.
'throw' is the first definition.
(I know that throw can be written as cast)
'group of actors' is the second definition.
(group of actors in a production)
(Other definitions for cast that I've seen before include "Discard; mould" , "discarded" , "Troupe" , "Dramatis personae" , "Personnel in a play" .)