Groucho Marx (left) made a special guest appearance on
the Tonight Show to introduce Johnny as the new host

 

Long time announcer and sidekick Ed McMahon (left) with Johnny

Johnny Carson (center) with Joan Crawford and Mel Brooks who were
among his first guests on the debut of The Tonight Show Starring Johnny
Carson (original run Oct. 1, 1962 – May 22, 1992)

Johnny near the end of his final show in 1992