Bob Holt: Bob Holt. Actor: Wizards. Bob Holt started his career in front of the cameras with a film role in 1950, playing Octavius Caesar in Julius Caesar followed by another role in 1959 in The Great St. Louis Bank Robbery. He moved on to primarily voice acting in 1968 providing all of the voices for a film short called Johnny Learns His Manners. Throughout the 1960's, 1970's, and 1980's, Bob provided...