G
- Ron Gans
- Rocío Garcel (Latin American dub: voice of Dr. Beverly Crusher)
- Joy Garrett
- Eduardo Garza (Latin American dub: additional voices)
- Dan Gauthier
- Miguel Angel Ghigliazza (Latin American dub: additional voices)
- Susan Gibney
- Whoopi Goldberg
- Mike Gomez
- Walter Gotell
- April Grace
- Kelsey Grammer
- Bruce Gray
- Scott Grimes
- Max Grodénchik
- Harry Groener
- Mona Grudt
- Castulo Guerra
- Evelyn Guerrero
- Bob Gunton
Read more about this topic: List Of Star Trek: The Next Generation Cast Members