Lee Majors Colt Seavers Actor Douglas Barr Howie Munson Actor Heather Thomas Jody Banks Actor Markie Post Actor Richard Burton Guest Star Mary-Margaret Humes Guest Star Lonny Chapman Guest Star Erik Holland Guest Star Michael D. Roberts Guest Star Lee Patterson Guest Star Chuck Hicks Guest Star Gus Corrado Guest Star Ed McCready Guest Star Robert A. Mannino Guest Star Gene Hartline Guest Star Bob Larkin Guest Star Glen A. Larson Executive Producer Harry Thomason Producer Michael O'Herlihy Director Robert Earll Writer