Sylvester Stallone Stakar Ogord
Chris Pratt Peter Quill / Star-Lord
Vin Diesel Baby Groot (voice)
Zoe Saldaña Gamora
Laura Haddock Meredith Quill
Karen Gillan Nebula
Kurt Russell Ego
Stan Lee Executive Producer, Characters, Watcher Informant
Bradley Cooper Rocket (voice)
Jeff Goldblum En Dwi Gast / Grandmaster (uncredited)
Ving Rhames Charlie-27
Dave Bautista Drax
James Gunn Director, Writer, Script Supervisor
Michael Rooker Yondu
Michelle Yeoh Aleta Ogord
Molly C. Quinn Howard's Date
Elizabeth Debicki Ayesha
David Hasselhoff The Form of David Hasselhoff
Michael Rosenbaum Martinex
Pom Klementieff Mantis
Seth Green Howard the Duck (voice)
Miley Cyrus Mainframe (voice) (uncredited)
Tommy Flanagan Tullk
Sean Gunn Kraglin / On-Set Rocket
Gregg Henry Grandpa Quill
Arslan Elver Animation Supervisor
Kevin Feige Producer
Jack Kirby Characters
Wyatt Oleff Young Peter Quill
Steve Agee Gef
Rob Zombie Unseen Ravager
Evan Jones Retch
Chris Sullivan Taserface
Guillermo Rodriguez Cop #2 (uncredited)
Till Nowak Concept Artist
Louis D'Esposito Executive Producer
Christopher Flick Foley
Jim Starlin Characters
Steve Englehart Characters
Terence Rosemore Narblik
Gene Colan Thanks
Andy Park Visual Development
Don Heck Thanks
Jacob Riehle First Assistant Sound Editor
Ben Browder Sovereign Admiral
Luke Cook Zylak's Frenemy
Aaron Schwartz Young Ego Facial Reference
Guy Williams Visual Effects Supervisor
Tyler Bates Original Music Composer
Sal Buscema Thanks
Sarah Halley Finn Casting
Barbara Harris ADR Voice Casting
Tara Feldstein Bennett Casting
Bill Mantlo Characters
Steve Gan Characters
Dave Jordan Music Supervisor
Larry Lieber Characters
Rhoda Griffis Sneeper Madame
Lora Hirschberg Sound Re-Recording Mixer
Elizabeth Faith Ludlow Easik Mother
Russell Bobbitt Property Master
Kelly Richardson Stunt Double, Daisy Kiu (uncredited)
Jane Oshita Stunts
Christopher Boyes Sound Re-Recording Mixer
Keith Giffen Characters
Joe Bucaro III Stunts
Donny Carrington Kree Monk (uncredited)
Chris Claremont Thanks
Nicolas Bosc Stunts
Molly Doyle Casting Associate
Stephen Blackehart Brahl
Casey Adams Stunts