Chris Pratt
Peter Quill / Star-Lord
Zoe Saldaña
Gamora
Dave Bautista
Drax the Destroyer
Vin Diesel
Baby Groot (voice)
Bradley Cooper
Rocket (voice)
Michael Rooker
Yondu Udonta
Karen Gillan
Nebula
Pom Klementieff
Mantis
Sylvester Stallone
Stakar Ogord
Kurt Russell
Ego
Elizabeth Debicki
Ayesha
Chris Sullivan
Taserface
Sean Gunn
Kraglin
Tommy Flanagan
Tullk
Laura Haddock
Meredith Quill
Aaron Schwartz
Young Ego Facial Reference
Hannah Gottesman
Sovereign Chambermaid
Hilty Bowen
Sovereign Pilot
Ben Browder
Sovereign Admiral
Alex Klein
Zylak
Luke Cook
Zylak's Frenemy
Evan Jones
Retch
Joe Fria
Oblo
Terence Rosemore
Narblik
Jimmy Urine
Half-Nut
Stephen Blackehart
Brahl
Steve Agee
Gef
Blondy Baruti
Huhtar
Richard Christy
"Down There!"
Rob Zombie
Unseen Ravager
Sierra Love
Robot Courtesan
Kendra Carelli
Robot Courtesan
Seth Green
Howard the Duck (voice)
Molly C. Quinn
Howard's Date
Michael Rosenbaum
Martinex
Rhoda Griffis
Sneeper Madame
Milynn Sarley
Robot Courtesan
Stan Lee
Watcher Informant
David Hasselhoff
The Form of David Hasselhoff
Mac Wells
Officer Fitzgibbon
Jim Gunn Sr.
Weird Old Man
Leota Gunn
Weird Old Man's Mistress
Elizabeth Faith Ludlow
Easik Mother
Wyatt Oleff
Young Peter Quill
Gregg Henry
Grandpa Quill
Damita Jane Howard
Grandpa Quill's Friend
Ving Rhames
Charlie-27
Michelle Yeoh
Aleta Ogord
Mike Escamilla
Scrote
Miley Cyrus
Mainframe (voice) (uncredited)
Jeff Goldblum
En Dwi Gast / Grandmaster (uncredited)
Donny Carrington
Kree Monk (uncredited)
Nea Dune
Lovebot (uncredited)
Fred Galle
Sovereign Leader (uncredited)
Alphonso A'Qen-Aten Jackson
Ravager (uncredited)
Kelly Richardson
Daisy Kiu (uncredited)
Guillermo Rodriguez
Cop #2 (uncredited)
Josh Tipis
Humanoid Ravager (uncredited)
Jason Williams
Huge Guard of the Sovereign Nation (uncredited)
Joe Heath
1980 Dairy Queen Employee (uncredited)