LOS ANGELES — Stan Irwin, a Las Vegas producer and manager for celebrities such as Johnny Carson, has died at age 94.

Irwin’s friend and business partner George Michaud said that Irwin died Wednesday of natural causes in Los Angeles.

Irwin guided the careers of Don Rickles, Buddy Hackett and Pearl Bailey. He was credited for bringing artists like Judy Garland, Frank Sinatra, Marlene Dietrich, Paul Anka, Bobby Darin, Brenda Lee, Bob Newhart and the Beatles to perform in Las Vegas.

Irwin also served as executive producer of “The Tonight Show” in 1962, which was the first year of Carson’s tenure.

He also voiced the Lou Costello character in Hanna-Barbera’s “The Abbott and Costello Cartoon Show” in the 1960s.