
Tom O'Sullivan
Acting
Biography
Tom O'Sullivan is an Australian television, film and theatre actor. O’Sullivan was born in Perth, Western Australia, and later relocated to Sydney to study at the National Institute of Dramatic Art where he graduated in 2003. His first television role was a guest role on the soap opera Home and Away and was followed by playing Tom Huppatz in the ABC TV mini-series Rain Shadow. In 2010, O'Sullivan played Sean 'Grunter' Sinclair in the crime drama Underbelly: The Golden Mile and joined the main cast of Nine Network drama Cops LAC playing Senior Constable Nathan Holt. He has also portrayed William Chambers in the TVNZ 1 drama When We Go To War and Michael Shrimpton in the Seven Network drama series Molly.
Filmography
19 credits
Boys Grammar
Movie • 2005
Nick

Avarice
Movie • 2022
Ryker

Alien: Covenant
Movie • 2017
David / Walter Double

Portrait of a Zombie
Movie • 2012
Neighbour

X-Men Origins: Wolverine
Movie • 2009
Logging Supervisor

The Reckoning
Movie • 2014
Connor

It Only Takes a Night
Movie • 2023
Gavin

Observance
Movie • 2016
Bret Buchanan

Truth
Movie • 2015
Newscaster

Fool's Gold
Movie • 2008
Precious Gem Crew Member 2

Molly
Movie • 2016
Michael Shrimpton

The Furies
Movie • 2019
Derek

The Skeleton Tree
Movie • 2025
Lance

Rain Shadow
TV • 2007
Tom Huppatz

Cops L.A.C.
TV • 2010
Nathan Holt

When We Go to War
TV • 2015
Dr William Chambers

Underbelly
TV • 2008
Sean 'Grunter' Sinclair

Home and Away
TV • 1988
Brian Gilbert

NCIS: Sydney
TV • 2023
Brandis