Putting the 'Ass' in Assassin (a.k.a. Three Cheats to the Wind)

Stroker, Hoop, Double-Wide, and C.A.R.R. are all abducted and left hanging hundreds of feet in the air by a crane. The person responsible for their abduction contacts them through a walkie-talkie and informs them that if they can’t guess who he is in three guesses he will drop them.