David O'Hara

David O'Hara Profile Photo

Characters played by David O'Hara

Henry Howard — The Tudors (2007)

Serves as Lieutenant General Surrey and leads English troops at Boulogne. After suffering a disastrous defeat, he attempts to usurp power from court figures. He is subsequently arrested, tried, and executed for treason on flimsy evidence.

Stephen, Irish Fighter — Braveheart (1995)

Irish mercenary fighting alongside Scottish rebels.

Gallum 'Sly' Ferrante — Cold Pursuit (2019)

Cartel associate and ski resort worker

Donnchadh — Tristan & Isolde (2006)

Irish King and primary antagonist who orders a raid killing Lord Aragon and Marke's wife. He schemes to fracture British unity by offering his daughter Isolde as a political bride. Discovering her secret affair with Tristan, he feigns outrage to publicly humiliate Marke and shatter the alliance, prompting other kings to abandon their leader. He leads a massive invasion against Cornwall, surrounding the castle with his army and traitorous Saxon forces. Ultimately, his invasion is defeated, ending Irish domination.

Michael Canaris — Doomsday (2008)

Michael Canaris is Prime Minister John Hatcher’s calculating advisor who exploits Hatcher’s infection to assume effective control of the government. He intends to delay distribution of the cure until the virus eliminates much of the underclass, but Eden Sinclair secretly records and exposes him.

Bowler Hat Surveyor — Horizon: An American Saga - Chapter 1 (2024)

Government official mapping territorial boundaries for expansion.

Rock Mullaney — Crossfire Trail (2001)

Rock Mullaney is one of Rafe Covington's two close companions who travels with him to Wyoming and helps restore the abandoned ranch. He assists in gathering the cattle, takes part in the final fight against Bruce Barkow's men, and kills Luke Taggart by emptying his rifle into him.

Jim Church — Contraband (2012)

A powerful gangster to whom Sebastian owes money. He purchases the counterfeit bills from Chris for three million dollars and informs him of the black market value of the stolen Jackson Pollock painting, facilitating Chris's financial escape.

Allan Heyl — Stander (2003)

Allan Heyl is a prisoner who joins Andre Stander and Lee McCall in friendship and escape. He becomes part of the Stander Gang, participates in its robberies, and later helps Stander flee after police surround their safehouse. Heyl survives the final confrontation and parts from Stander while escaping South Africa.

The Welshman — Made (2001)

The Welshman is Ruiz's criminal contact, whom Bobby and Ricky are sent to entertain and persuade as part of the laundering arrangement. He meets Bobby at the final gathering and becomes the target of a double-cross alongside him. Their attempted deal collapses when armed violence breaks out.

Ulph — Deus (2022)

Ulph is one of the remaining Achilles crew members after the deaths and conflicts on the sphere. He works with Karla Grey to stop Vance's planned mass killing and helps save the command module from the spacecraft's destruction. Because the explosive device cannot be remotely detonated, Ulph remains on the sphere and sacrifices himself to destroy it.

Mad Dog Flynn — Whole Lotta Sole (2011)

Mad Dog Flynn is the local mobster to whom Jimbo owes gambling debt. His business uses the local fishmonger's shop as a front, so Jimbo's attempted robbery directly threatens Flynn's operation and brings his gang into the confrontation surrounding Jimbo, the hostages, and the police.

Career Overview

David O'Hara has 62 screen credits in a career dating back to 1983. Their work spans 6 cinematic universes — most prominently Horizon: An American Saga with 2 titles. Signature works include Tristan & Isolde, Wanted, Doomsday. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.

Personal Facts

Known For
Acting
Gender
male
Known Credits
62
Birth Date
1965-07-09
Birth Place
Glasgow, Scotland, UK

Known For

Associated Universes

Universe traveler — spans 6 universes

Frequent Collaborators

Credits

Content sources

Related entry on Wikidata (Q708801), public domain (CC0).