Bradley Cooper Rocket (voice)
Zoe Saldaña Gamora
Vin Diesel Groot (voice)
Sylvester Stallone Stakar Ogord
Nathan Fillion Master Karja
Chris Pratt Peter Quill / Star-Lord
Linda Cardellini Lylla
Dave Bautista Drax
Kevin Feige Producer
Tara Strong Mainframe (voice)
Maria Bakalova Cosmo (voice)
Karen Gillan Nebula
Will Poulter Adam Warlock
Seth Green Howard the Duck (voice)
James Gunn Writer, Lamb-Shank (voice), Director
Stan Lee Characters
Michael Rooker Yondu
Judy Greer War Pig (voice)
Michael Rosenbaum Martinex
Miriam Shor Recorder Vim
Jack Kirby Characters
Elizabeth Debicki Ayesha
Pom Klementieff Mantis
Molly C. Quinn Molly Ravager
Gregg Henry Grandpa Quill
Pete Davidson Phlektik
Dee Bradley Baker Blurp (voice)
Jennifer Holland Administrator Kwol
Mikaela Hoover Floor
Daniel Bernhardt Stunts
Don Heck Characters
Jim Starlin Characters
Larry Lieber Characters
Daniela Melchior Ura
Bill Mantlo Characters
Steve Gan Characters
Christopher Fairbank Broker
Sean Gunn Kraglin / Young Rocket (voice)
Victoria Alonso Executive Producer
Steve Englehart Characters
Bobcat Goldthwait Thanks
Gary Rizzo Sound Re-Recording Mixer
Louis D'Esposito Executive Producer
Christopher Boyes Sound Re-Recording Mixer
Lloyd Kaufman Gridlemop (voice)
Keith Giffen Characters
Alicia Vela-Bailey Stunt Double
Mike Mignola Thanks
Hank Amos Stunts
Clare Grant Crying Krylorian Citizen
Chukwudi Iwuji The High Evolutionary
Roger Stern Characters
Heidi Moneymaker Stunt Coordinator
Aurélia Agel Stunt Double
Doc Kane ADR Mixer
Karen Abercrombie Grandma Quill
Stephane Ceretti Visual Effects Supervisor
Asim Chaudhry Teefs
Tiffany Smith Orgocorp Host Friniki
Fred Raskin Editor
Dane DiLiegro Unsavory Octopus
Benjamin Byron Davis Bletelsnort
Randy Havens Till
Beth Mickle Production Design
Natalia Safran Controller
David Acord Supervising Sound Editor, Sound Designer
Roy Thomas Thanks
Nico Santos Recorder Theel
Sarah Halley Finn Casting
Vincent Papaix Visual Effects Supervisor
Loyd Bateman Fight Choreographer
Judianna Makovsky Costume Design