Rangers[]
Veteran []
- Wes Bentley as Leo Corbett (movie) - the Red Ranger, leader of the Galaxy Rangers.
New Rangers, Lost Galaxy team 2.0[]
- Anthony Marsh, Jr as AJ Weems - the 1st G2 Yellow Galaxy Ranger/Shadow Knight Ranger.
- Noomi Rapace as Gwen McQueen - the G2 Pink Galaxy Ranger.
- Don Cheadle as Browne Jones - the G2 Green Galaxy Ranger.
- Josh Cooke as Will James - the G2 Blue Galaxy Ranger.
- Donnie Wahlberg as Jess Marshall - the 3rd Magna Defender.
- Kieran Culkin as Thorne Kentland - the 2nd G2 Yellow Galaxy Ranger
Villains []
- Jerry Hall as Trakeena /Irene "Tracendra " Lewis
- Anthony Marsh, Jr as Scorpius (voice, only in flashbacks).
- Michael Fassbender as Villamax
- Jason Anthony Griffith as Kegler (voice)
- Verne Troyer as Kegler (suit)
- Frank Welker as Deviot (voice)
- Jess Harnell as Barbarax (voice)
- Charlie Adler as Treacheron (voice)
- Steve Blum as Furio (voice)
- Tony Todd as Lord Metarex (voice)
- Phil LaMarr as Zeltrax (voice)
Orion Legend Rangers[]
The Orion Legend Rangers don the unused Ranger suits from Gosei Sentai Dairanger to aid the Galaxy Rangers.
Main Article: Orion Legend Rangers
Allies[]
- Robert Downey, Jr as Commander Chalmers
- Kristen Wiig as Carrie Miller
- Seth Green as Devin Stewart
- Wendee Lee as Alpha 6 (voice)
- Chris Cox as Alphatron 3GM (voice)
- Ray Park as Jimmy the Panda (voice and suit only)