Ryan MacDonald

Black Dawn

Film · 1997

Robert Mainwaring

Temptress

Film · 1995

Gordon Hensen

Star Trek: Voyager

TV series · 1995

Shopkeeper

The Enemy Within

Film · 1994

Jack Giddings

The Positively True Adventures of the Alleged Texas Cheerleader-Murdering Mom

Film · 1993

Old Man

Newsies

Film · 1992

Mayor Robert Van Wyck

JFK

Film · 1991

Board Room Man

Future Kick

Film · 1991

Peter

Doogie Howser, M.D.

TV series · 1989

AMA Chairman

Nutcracker: Money, Madness & Murder

TV series · 1987

Divorce Judge

Starchaser: The Legend of Orin

Film · 1985

Role

Airwolf

TV series · 1984

Barker

Grace Kelly

Film · 1983

Mr. Austin

Thursday's Child

Film · 1983

Dr. Shumway

Newhart

TV series · 1982

Mr. Kenwood

Remington Steele

TV series · 1982

Harold Delanian

T. J. Hooker

TV series · 1982

Car Salesman

Falcon Crest

TV series · 1981

Kenneth Lone

The Brady Girls Get Married

Film · 1981

Mr. Covington

Knots Landing

TV series · 1979

Governor Kelsey

Hart to Hart

TV series · 1979

Lester

Stonestreet: Who Killed the Centerfold Model?

Film · 1977

Watch Commander

Quincy, M.E.

TV series · 1976

Clark

Rich Man, Poor Man - Book II

TV series · 1976

Sen. Brendell

Police Woman

TV series · 1974

Mr. Green

The Rockford Files

TV series · 1974

Hotel Manager

The Six Million Dollar Man

TV series · 1974

George Van Rensselaer

The Great American Beauty Contest

Film · 1973

Elliot

Emergency!

TV series · 1972

Walter

Monty Nash

TV series · 1971

Neville

Columbo

TV series · 1971

Charles Whelan

Love Hate Love

Film · 1971

Lieutenant Hank Robins (as Ryan McDonald)

The Odd Couple

TV series · 1970

Roy

The Doris Day Show

TV series · 1968

Clerk

Here's Lucy

TV series · 1968

Jerry Thompson

Mannix

TV series · 1967

Lt. Robert Hargrave

Lassie

TV series · 1954

Jim Fredericks