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 (2025) as well as FBI agent Adam Corrigan in the third season of the Netflix series The Night Agent (2026).
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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.
