Gavan O'Herlihy

Gavan O’Herlihy (29 July 1951 – 15 September 2021) was an Irish actor whose career spanned film, television, and stage, marked by a distinctive presence and a talent for commanding roles. Born in Dublin to actor Dan O’Herlihy and artist Elsie Bennett, he spent his early years between Ireland and the United States, eventually attending Phillips Academy Andover and later the University of California, where he excelled as a champion tennis player before turning fully toward acting. O’Herlihy first gained attention as Chuck Cunningham in the early episodes of Happy Days, a role he deliberately left behind to avoid being typecast in light comedic parts. He instead built a diverse and often hard‑edged body of work, appearing in major productions including Never Say Never Again (as the villainous Jack Petachi), Superman III, Death Wish 3, Willow (as the warrior Airk Thaughbaer), and the acclaimed miniseries Lonesome Dove. His television career was equally varied, with appearances in Twin Peaks, Star Trek: Voyager, The Six Million Dollar Man, Murder, She Wrote, and numerous British productions after relocating to the UK. Across more than fifty screen credits, O’Herlihy became known for portraying complex, often formidable characters — soldiers, outlaws, antagonists, and men with a dangerous edge — roles he embraced for the challenge and dramatic weight they offered. Off‑screen, he was regarded as thoughtful, private, and deeply committed to his craft, preferring character work over celebrity. He died in Bath, England, on 15 September 2021 at the age of 70, reportedly of natural causes.

Cast

Willow

(Airk)

The Last Outlaw

(Marshal Sharp)

Prince Valiant

(King Thane)

Space Riders

(Ron Harris)

Death Wish 3

(Manny Fraker)

Sergeant Matlovich vs. the U.S. Air Force

(Art Stinson)

Mark Twain: Beneath the Laughter

(Young Clemens)

The Descent: Part 2

(Vaines)

The Dirty Dozen: Next Mission

(Conrad E. Perkins)

Conagher

(Chris Mahler, Cowboy)

The Shooter

(Dick Powell)

Superman III

(Brad Wilson)

A Wedding

(Wilson Briggs)

Sharpe's Eagle

(Captain Thomas Leroy)

Sharpe: The Legend

(Leroy)

A Death in Canaan

(Father Mark)

The Secret Adversary

(Julius P. Hersheimmer)

Red King, White Knight

(Clancy)

Never Say Never Again

(Jack Petachi)

The Ghost of Cypress Swamp

(Big Bob Landers)

Butterfly Man

(Bill Kincaid)

Cruise of the Gods

(Mickey)

The California Kid

(Tom)

Top of the World

(Lieutenant Logan)

The Healers

Call to Danger

(Mechanic)

Star Trek: Voyager

(Maje Jabin)

The Bionic Woman

Jonathan Creek

(Hal Drucker)

China Beach

Twin Peaks

(Officer Preston King)

Tales from the Crypt

(Richard)

Happy Days

(Chuck Cunningham)

Sherlock Holmes

(John Garrideb / James Winter)

Cover Up

18 Wheels of Justice

The Mary Tyler Moore Show

(Josh McBride (as Gavin O'Herlihy))

Midsomer Murders

(George Arlington)

The Six Million Dollar Man

(Dan)

Lonesome Dove

(Dan Suggs)

Marcus Welby, M.D.

(Herb Frane)

A Rumor of War

(Stanton)

Agatha Christie's Partners in Crime

(Julius P. Hersheimmer)

The Amazing Spider-Man

(David)

Police Woman

(Gordon Stuart)

A Killing on the Exchange

(Dan Maitland)

Matt Houston

(Michael Sheridan)

Sharpe

(Cpt. Leroy)

We'll Meet Again

(Capt Red Burwash)

The Memoirs of Sherlock Holmes

(John Garrideb / James Winter)