Untouchables alumni

Just noticed how many of the actors also did episodes on "The Untouchables". Silva as "Charlie Sabotini"; Marc Lawrence one of the Genna brothers; Telly Savalas,Elizabeth Montgomery, Jim Backus,Richard Anderson. They were 'billed'
Uncredited were Frank Albertson, Joe Turkel and Frank Wilcox who played gov't attorney "Beecher Asbury" in about 20 episodes. Cosmo Sardo in 15 episodes playing various gangsters(talk about typecasting), Mario Siletti, Kelly Thordson, Clegg Hoyt, Jimmy Cross, George Cisar, George Neise, Douglas Dumbrille, and ELISHA COOK,JR.(that was a surprise).
Desilu kept a lot of people busy back then.