Season 2 Episode 10
A young ventriloquist (Bobcat Goldthwait) wants to improve his craft and seeks out help from his old hero (Don Rickles), but he soon finds out about his own hidden secret.
Source: Tales From the Crypt #28
Horror History: Tuesday, June 5, 1990: “Tales From The Crypt” episode “The Ventriloquist’s Dummy” premiered