Gavan O'Herlihy

The Descent: Part 2

Vaines

2009

Cruise of the Gods

Mickey

2002

Butterfly Man

Bill Kincaid

2002

18 Wheels of Justice

2000

Sharpe: The Legend

Leroy

1997

Prince Valiant

King Thane

1997

Jonathan Creek

Hal Drucker

1997

Top of the World

Lieutenant Logan

1997

Midsomer Murders

George Arlington

1997

The Shooter

Dick Powell

1995

Star Trek: Voyager

Maje Jabin

1995

The Memoirs of Sherlock Holmes

John Garrideb / James Winter

1994

The Last Outlaw

Marshal Sharp

1993

Sharpe's Eagle

Captain Thomas Leroy

1993

Sharpe

Cpt. Leroy

1993

Conagher

Chris Mahler, Cowboy

1991

Twin Peaks

Officer Preston King

1990

Red King, White Knight

Clancy

1989

Tales from the Crypt

Richard

1989

Lonesome Dove

Dan Suggs

1989

Willow

Airk

1988

China Beach

1988

A Killing on the Exchange

Dan Maitland

1987

Death Wish 3

Manny Fraker

1985

The Dirty Dozen: Next Mission

Conrad E. Perkins

1985

Cover Up

1984

Sherlock Holmes

John Garrideb / James Winter

1984

Space Riders

Ron Harris

1984

The Secret Adversary

Julius P. Hersheimmer

1983

Agatha Christie's Partners in Crime

Julius P. Hersheimmer

1983

Never Say Never Again

Jack Petachi

1983

Superman III

Brad Wilson

1983

Matt Houston

Michael Sheridan

1982

We'll Meet Again

Capt Red Burwash

1982

A Rumor of War

Stanton

1980

Mark Twain: Beneath the Laughter

Young Clemens

1979

A Wedding

Wilson Briggs

1978

Sergeant Matlovich vs. the U.S. Air Force

Art Stinson

1978

The Amazing Spider-Man

David

1978

A Death in Canaan

Father Mark

1978

The Ghost of Cypress Swamp

Big Bob Landers

1977

The Bionic Woman

1976

The California Kid

Tom

1974

Police Woman

Gordon Stuart

1974

The Healers

1974

The Six Million Dollar Man

Dan

1974

Happy Days

Chuck Cunningham

1974

Call to Danger

Mechanic

1973

The Mary Tyler Moore Show

Josh McBride (as Gavin O'Herlihy)

1970

Marcus Welby, M.D.

Herb Frane

1969