highest rated
acting
- M*A*S*H: The Comedy That Changed Television → Self
- M*A*S*H: 30th Anniversary Reunion → Himself
- Team Knight Rider (TV) → Professor Roykirk
- Heaven Sent → Priest
- Diagnosis: Murder (TV) → Art Amador / Martin Beckman
- Lois & Clark: The New Adventures of Superman (TV) → Andrus
- Mad About You (TV) → Chaplain Olson
- The New WKRP in Cincinnati (TV)
- Memories of M*A*S*H → Self / Father Mulcahy
- Snoops (TV) → Harvey Allen
- The Little Troll Prince → Bjørn
- Murder, She Wrote (TV) → Burton Hollis
- AfterMASH (TV) → Father Mulcahy
- Making 'M*A*S*H' → Self
- For the Love of It → Barton
- The Love Boat (TV) → Carl Mitchell
- The Love Boat (TV) → Elliot Weatherly
- The Love Boat (TV) → Hal Wiliston
- Hearts of the West → Bank Teller
- Dinah! (TV) → Self
- Good Times (TV) → The Doctor
- M*A*S*H (TV) → Father Mulcahy
- Columbo (TV) → Male Scientist
- Alias Smith and Jones (TV)
- Nichols (TV) → Niles
- The Shakiest Gun in the West → Hotel Manager (uncredited)
- With Six You Get Eggroll → Zip (Cloud)
- The Private Navy of Sgt. O'Farrell → Pvt. Jake Schultz
- The Perils of Pauline → Doctor
- That Girl (TV)
- The Fortune Cookie → Interne (as Bill Christopher)
- Hogan's Heroes (TV) → Lieutenant Donner
- Hogan's Heroes (TV) → German Private
- Hogan's Heroes (TV) → Foster
- Hogan's Heroes (TV) → Thomas
- Gomer Pyle, U.S.M.C. (TV)
- Gomer Pyle, U.S.M.C. (TV) → Lester Hummel
- Gomer Pyle, U.S.M.C. (TV) → Lester Hummel (uncredited)
- Gomer Pyle, U.S.M.C. (TV) → Pvt. Lester Hummel
- The Patty Duke Show (TV)
- The Mike Douglas Show (TV) → Self
- The Andy Griffith Show (TV) → Mr. Heathcote
- The Andy Griffith Show (TV) → Dr. Thomas Peterson