Enjoyed flying, hunting, fishing and underwater swimming.
Had three different wives during the run of "Combat!" (1962).
Had to end his first TV series, "The Case of the Dangerous Robin" (1960), because of injuring the sciatic nerve in his back while picking up something off the floor during a filming break.
His ex-wife, Shirley, was the ex-wife of Johnny Johnston.
Played guitar.
Spoke Spanish, French, Italian and Chinese.