David Lyons

David Lyons is an Australian actor. He is known for his roles Josh Holiday in the Nine Network navy drama Sea Patrol (2007–2009), Dr. Simon Brenner in the NBC medical drama ER (2008–2009), as General Sebastian Monroe in the NBC post-apocalyptic drama Revolution (2012–2014) and as FBI agent Brian Abbott in the Netflix limited series The Beast In Me as well as FBI agent Adam Corrigan in the third season of the Netflix series The Night Agent (2026).

Early life and education Lyons graduated from Yarra Valley Grammar school in 1993 and continued on to graduate from Australia's National Institute of Dramatic Art (NIDA) with a degree in Performing Arts (Acting) in 2004.

Career In 2005, Lyons had a recurring role on the Seven Network police drama Blue Heelers and guest-starred on the Seven Network/Network Ten/Eleven soap opera Neighbours.

Lyons starred in the Nine Network police drama Sea Patrol, where he played the Leading Seaman Josh Holiday for the show's first three series from 2007 until 2009.

Lyons began starring in the NBC medical drama ER as Dr. Simon Brenner, making his first appearance in season 14, episode 14 titled "Owner of a Broken Heart" which aired on 10 April 2008, but he was credited as a special guest star. When the show's 15th and final season premiere titled "Life After Death" aired on 25 September 2008, Lyons was added to the main cast. Lyons remained on the show until it ended with the two-hour series finale, "And in the End...", which aired on 2 April 2009.

In 2009, Lyons starred in the television film A Model Daughter: The Killing of Caroline Byrne.

In 2010, Lyons appeared in the biographical romantic drama Eat Pray Love, which starred Julia Roberts and was based on Elizabeth Gilbert's autobiography of the same name.

In January 2011, Lyons starred as the title role in the NBC superhero drama The Cape, until the show was cancelled in March that same year after ten episodes.

Lyons co-starred with Billy Burke in the NBC post-apocalyptic drama Revolution, which ran for two seasons from 2012 to 2014. He played Sebastian "Bas" Monroe, a former US Marine Corps sergeant who served with Miles Matheson (Burke), founded the Monroe Republic, and became its president and later general of its militia.

In 2013, Lyons co-starred with Josh Duhamel and Julianne Hough in the romantic drama Safe Haven, based on Nicholas Sparks' novel of the same name.

The short film Record was released in 2013. Lyons was the director, composer, and one of the screenwriters.

Lyons will appear in the upcoming Netflix limited series adaptation All the Sinners Bleed, based on the S. A. Cosby novel of the same name.

Personal life Born April 16, 1976 Lyons is married to Canadian actress Carly Pope. In November 2024, Pope gave birth to their child.

Filmography Film

Television

Awards and nominations Year Award Category Nominated work Result2014 Stellae Awards Best Actor Penance Heartland International Film Festival Best Narrative Short Record