- Greg Germann (5 movies)
- Greg Grunberg (5 movies)
- Greg Hicks (1 movie)
- Greg Ingram (1 movie)
- Greg Jeloudov (1 movie)
- Greg Kelly (1 movie)
- Greg Kinnear (13 movies)
- Greg Kramer (1 movie)
- Greg Levine (1 movie)
- Greg Lewis (1 movie)
- Greg Lindsay (1 movie)
- Greg Lockett (1 movie)
- Greg Marian (1 movie)
- Greg Melvill-Smith (1 movie)
- Greg Nutcher (1 movie)
- Greg Proops (1 movie)
- Greg Serano (2 movies)
- Greg Tiernan (1 movie)
- Greg Townley (2 movies)
- Greg Tuculescu (1 movie)
- Greg Violand (1 movie)
- Greg Wood (1 movie)
- Greg Zach (1 movie)
- Gregg Bello (1 movie)
- Gregg Binkley (2 movies)
- Gregg Chillin (1 movie)
- Gregg Edelman (1 movie)
- Gregg Henry (5 movies)
- Gregg Turkington (1 movie)
- Grégoire Ludig (1 movie)
- Gregor Fisher (1 movie)
- Gregor Truter (1 movie)
- Gregory Alan Williams (2 movies)
- Gregory Alosio (1 movie)
- Gregory Baldi (1 movie)
- Gregory Bright (1 movie)
- Gregory Cooke (1 movie)
- Gregory Cruz (2 movies)
- Gregory D. Gadson (1 movie)
- Gregory Fears (2 movies)
- Grégory Fitoussi (1 movie)
- Gregory Gorenc (1 movie)
- Gregory Grudt (1 movie)
- Gregory Hosaflook (1 movie)
- Gregory Itzin (6 movies)
- Gregory Kelly (1 movie)
- Gregory M. Brown (2 movies)
- Gregory Morley (1 movie)
- Gregory Nicotero (1 movie)
- Gregory P. Hitchen (1 movie)