Although he was draft-exempt due to a physical injury, he enlisted into the Marines out of patriotism and served in Okinawa during WWII. Under contract to MGM at the time he enlisted, boss Louis B. Mayer was furious with him for enlisting just as the studio was promoting him as a star and he was dropped.
Initially planned to go into law.
While at Warners, Lundigan's 'voice with a smile it' was used as one of the narrators in several of the classic 1940s Looney Tunes cartoons.