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.
Acting
26
Male
1951-07-29
Dublin, Ireland
—
Willow
The Last Outlaw
Prince Valiant
Space Riders
Death Wish 3
Sergeant Matlovich vs. the U.S. Air Force
Mark Twain: Beneath the Laughter
The Descent: Part 2
The Dirty Dozen: Next Mission
Conagher
The Shooter
Superman III
A Wedding
Sharpe's Eagle
Sharpe: The Legend
The Ghost of Cypress Swamp
The Secret Adversary
Red King, White Knight
A Death in Canaan
Butterfly Man
Cruise of the Gods
Never Say Never Again
The California Kid
Top of the World
The Healers
Call to Danger