John Gregg Filmography
- Actor (47 credits)
- Old School (2014) Felix
- Power Games: The Packer-Murdoch Story (2013) Calvin Tompkins
- Crownies (2011) Professor McLeod
- Spirited (2010) Priest
- Rake (2010) Judge Cummings
- Radio Pirates (2009) Willis
- The View from Greenhaven (2008) Tobe
- Dynasty: The Making of a Guilty Pleasure (2005) Lloyd Bochner
- Blue Water High (2005) Dr. Jones
- Jessica (2004) Justice Wall
- The Hostages (2002)
- Heroes' Mountain (2002) Andrew Donald
- Young Lions (2002) George Quinlan QC
- Black and White (2002) Rohan Rivett
- To End All Wars (2001) Camp Doctor Coates
- Changi (2001) Colonel Carter
- My Husband My Killer (2001) Allan Saunders
- Grass Roots (2000) Morgan Bartok
- Farscape (1999) Talyn Lyczac
- The Ripper (1997) Dr. William Gull
- Emmerdale: The Dingles Down Under (1997) John Gibson
- Roar (1997) Councillor #1
- Murder Call (1997) Major Alan Richter
- Turning April (1996) Attorney-General
- Medivac (1996) Dr. Peter Michaels
- Mirror, Mirror (1995) Reverand Pinbody
- Halifax f.p: Acts of Betrayal (1994) Connolly O'Gorman
- Heartbreak High (1994) Carson
- Ebbtide (1994) Chalmers
- The Last Man Hanged (1992) Journalist
- Deadly (1991) Minister
- Trouble in Paradise (1989) Seth
- Circus (1988) 2nd Unicyclist
- Two Brothers Running (1988) Nelson
- Travelling North (1987) Jim
- Captain James Cook (1987) Banks
- Burke & Wills (1985) Alfred Erwin
- Bootleg (1985) Brown
- Bodyline (1984) Percy George Fender
- Heatwave (1982) Philip Lawson
- The Gentle Touch (1980) Simon Fox
- Shoestring (1979) Jimmy Colefax
- Charlie Muffin (1979) Australian Salesman
- Disraeli (1978) Lord Salisbury
- Armchair Thriller (1978) Everly
- Dead of Night (1972) Partner
- Twelfth Night (1966) Sir Toby Belch
