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Biography
Gavan O'Herlihy (29 July 1951 - 15 September 2021) was an Irish actor. He was known for playing Chuck Cunningham in the first episodes of the television sitcom Happy Days, as well as his appearances in films such as Never Say Never Again, Superman III, Death Wish 3, and Willow. He was the son of actor Dan O'Herlihy.
Filmography29 titles

Twin Peaks
1990as Officer Preston King
1990as Officer Preston King

Sherlock Holmes
1984as John Garrideb / James Winter
1984as John Garrideb / James Winter

Sharpe
1993as Cpt. Leroy
1993as Cpt. Leroy

Tales from the Crypt
1989as Richard
1989as Richard

Lonesome Dove
1989as Dan Suggs
1989as Dan Suggs

Star Trek: Voyager
1995as Maje Jabin
1995as Maje Jabin

Happy Days
1974as Chuck Cunningham
1974as Chuck Cunningham

The Mary Tyler Moore Show
1970as Josh McBride (as Gavin O'Herlihy)
1970as Josh McBride (as Gavin O'Herlihy)

Midsomer Murders
1997as George Arlington
1997as George Arlington

Jonathan Creek
1997as Hal Drucker
1997as Hal Drucker

China Beach
1988
1988

The Six Million Dollar Man
1974as Dan
1974as Dan

Willow
1988as Airk
1988as Airk

The Bionic Woman
1976
1976

The Secret Adversary
1983as Julius P. Hersheimmer
1983as Julius P. Hersheimmer

Conagher
1991as Chris Mahler, Cowboy
1991as Chris Mahler, Cowboy

Marcus Welby, M.D.
1969as Herb Frane
1969as Herb Frane

Partners in Crime
1983as Julius P. Hersheimmer
1983as Julius P. Hersheimmer

Police Woman
1974as Gordon Stuart
1974as Gordon Stuart

A Wedding
1978as Wilson Briggs
1978as Wilson Briggs

Death Wish 3
1985as Manny Fraker
1985as Manny Fraker

Never Say Never Again
1983as Jack Petachi
1983as Jack Petachi

The Descent: Part 2
2009as Vaines
2009as Vaines

Superman III
1983as Brad Wilson
1983as Brad Wilson

The Last Outlaw
1993as Marshal Sharp
1993as Marshal Sharp

Prince Valiant
1997as King Thane
1997as King Thane

Top of the World
1997as Lieutenant Logan
1997as Lieutenant Logan

Cruise of the Gods
2002as Mickey
2002as Mickey

Hidden Assassin
1995as Dick Powell
1995as Dick Powell