Updated: November 02, 2025

The main cast of "My Favorite Martian" includes Ray Walston as Uncle Martin and Bill Bixby as Tim O'Hara.

Main Cast:

Ray Walston as Uncle Martin: A 450 year old Martian anthropologist who crash-lands on Earth and disguises himself as Tim's uncle to avoid revealing his true identity and powers.

Bill Bixby as Tim O'Hara: A young newspaper reporter who takes Uncle Martin in and helps him navigate life on Earth while keeping his identity a secret.