- A Place To Call Home (2013) TV Series ... George Bligh
- The Mystery of a Hansom Cab (2012) TV Movie ... Oliver Whyte
- Australia on Trial (2012) TV Series ... John Plunkett (episode 3 "Massacre at Myall Creek)
- Killing Time (2011) TV Series ... David Ross QC (episode #1.6)
- Cops L.A.C. (2010) TV Series ... Dave (episode "Ghost House")
- Underbelly Files: Tell Them Lucifer Was Here (2010) TV Series ... Paul Sheridan
- Blessed (2009) ... Michael
- City Homicide (2009) ... Victor Carling
- The Elephant Princess (2008) TV Series ... Omar
- Penicilin: The Magic Bullet (2006) ... Norman Heatley
- Lost and Found (2006) ... McKenzie Morgan
- Book of Revelation (2006)
- Little Oberon (2005) (TV) ... Dr Vivian Cage
- The Third Date (2004) (Short movie) ... Adam
- Wildness (2003) (voice) .... Voice of Peter Dombrovskis
- The Angel Files (2002) ... Nathan, orginal assistant (episode "Pilot Movie")
- Shuang tong (2002) .... Serial Killer
   ... aka Double Vision (USA)
- All Saints (2001 + 2003) TV Series ... Dr. Malcolm Pussle
- Something in the Air (2001) TV Series ... Steve Saks
- Sleepless Frights, Epsiode III: The Staff Menace (2001) (trainingvideo of B-sec)
- Eugenie Sandler P.I. (2000) TV Series .... Ray Sandler
- Tales of the South Seas (2000) (episode # 1.13 "The Assassin")
- Stingers (2000) TV Series ... Dr. Gresham
- Water Rats (1999) TV Series ... Terry Spiro
- Close Contact (1999) (TV) .... Chris Price
- The Silver Brumby (1998) TV Series (voice) .... Thowra #2
- El Macchiato (1998) Short movie ... Barista
- Blue Heelers (1997-1998) TV Series .... Robbie Doyle
- All Saints (1998) TV Series ... Bryan Taylor (episode # 1.38 "Happy Death Day")
- Murder Call (1997) TV Series ... Kim Kouros (episode # 1.7 "Black Friday")
- Midnight Expresso (1996) Short movie
- Blackwater Trail (1996) .... Father Michael
- Halifax f.p: Without Consent (1996) (TV) .... Danny
- The Inner Sanctuary (1996) .... Andrew
- Pacific Drive (1995) TV Series .... Shane Ritchie
- Body Melt (1993) .... Brian Rand
- Snowy River: The McGregor Saga (1993) TV Series .... Colin McGregor
   ... aka Banjo Paterson's The Man From Snowy River
- Tracks of Glory (1992) (mini) TV Series .... Jonathan Dodds
- Embassy (1991) ... Joshua (episode: "Cherchez La Femme")
- GP (1989-1991) ... Danny Tanner
- Snowy ... Gordon King (episode: "Mick's Cafe")
- The Flying Doctors (1989-1990) TV Series .... Dr. David Ratcliffe 
- A Country Practice (1987-1989) TV Series .... Michael Langley 
- Joe Wilson (1988)
- Vietnam (1987) (mini) TV Series .... Ritchie
- The Flying Doctors (1987) TV Series ... Trevor Neilson (episode # 2.15 "The Hometown Hero")
- Rafferty's Rules (1987) ... Peter Becker
- Outback Vampires (1987) .... Bronco
   ... aka Prince at the Court of Yarralumla (video title)
   ... aka The Wicked (USA)
   ... aka Tomorrow's News (Australia)
- Dead-End Drive In (1986) .... Don
   ... aka Dead End (USA: short title)
- Going Sane (1986) .... Matthew Brown
- Prime Time (1986)
- I Own the Racecourse (1986) (TV) .... Constable Eadie
- Archer's Adventure (1985) .... Dave Power
   ... aka Archer
- A Fortunate Life (1985) (mini) TV Series .... Terry (part IV: 'Providence' (1914-1916))
- Relatives (1985) .... Ross
- A Street to Die (1985) .... Trevor
- Butterfly Island (1985) ... Brett (episode: "Fathers and Sons")
- Five Mile Creek (1984) ... Brennan" (episode # 2.1 "The Hangman's Noose")
- A Country Practice (1984) TV Series ... Sandy Hughes
- High Country (1984) .... Alex Corbett
   ... aka The Man from the High Country (UK: TV title)
- Sons and Daughters (1983) TV Series .... Peter Healy
- Chase Through the Night (1983) (TV) .... Ray
- A Country Practice (1982) TV Series ... Barry Hall

Brett in theatre:
- The Ishmael Club (2003)...Bill Dyson
- The Lady In The Van (2002)...the young Alan Bennett
- Betrayal (2001)
- Crazy Brave (2000)...Jim Morgan
- Fred (1999)
- Hayfever (1991)
- A Hard Job (Unknown)

Brett in commercials:
- Maltesers
- Visa
- Pure
- Quantas Airlines
- Dairy Box
- Schweppes lemonade
- Opel Signum
- BigM flavoured milk