
Tom O'Sullivan
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.
Known For

TV
Home and Away
Brian Gilbert
1988

Film
Alien: Covenant
David / Walter Double
2017

TV
Underbelly
Sean 'Grunter' Sinclair
2008

TV
NCIS: Sydney
Brandis
2023

Film
Fool's Gold
Precious Gem Crew Member 2
2008

TV
Cops L.A.C.
Nathan Holt
2010

Film
Avarice
Ryker
2022

Film
Truth
Newscaster
2015

TV
When We Go to War
Dr William Chambers
2015

Film
Observance
Bret Buchanan
2016

TV
Rain Shadow
Tom Huppatz
2007

Film
The Furies
Derek
2019

Film
Boys Grammar
Nick
2005

Film
X-Men Origins: Wolverine
Logging Supervisor
2009

Film
The Reckoning
Connor
2014

Film
It Only Takes a Night
Gavin
2023

Film
Molly
Michael Shrimpton
2016

Film
Portrait of a Zombie
Neighbour
2012

Film
The Skeleton Tree
Lance
2025
Filmography
2025FilmThe Skeleton Treeas Lance2023TVNCIS: Sydneyas Brandis2023FilmIt Only Takes a Nightas Gavin2022FilmAvariceas Ryker2019FilmThe Furiesas Derek2017FilmAlien: Covenantas David / Walter Double2016FilmObservanceas Bret Buchanan2016FilmMollyas Michael Shrimpton2015FilmTruthas Newscaster2015TVWhen We Go to Waras Dr William Chambers2014FilmThe Reckoningas Connor2012FilmPortrait of a Zombieas Neighbour2010TVCops L.A.C.as Nathan Holt2009FilmX-Men Origins: Wolverineas Logging Supervisor2008TVUnderbellyas Sean 'Grunter' Sinclair2008FilmFool's Goldas Precious Gem Crew Member 22007TVRain Shadowas Tom Huppatz2005FilmBoys Grammaras Nick1988TVHome and Awayas Brian Gilbert