Obsazení

• Chris Pratt — Peter Quill / Star Lord
• Zoe Saldaña — Gamora
• Dave Bautista — Drax
• Karen Gillan — Nebula
• Pom Klementieff — Mantis
• Vin Diesel — Groot
• Bradley Cooper — Rocket
• Will Poulter — Adam Warlock
• Sean Gunn — Young Rocket
• Chukwudi Iwuji — High Evolutionary
• Linda Cardellini — Lylla
• Nathan Fillion — Master Karja
• Sean Gunn — Young Rocket
• Maria Bakalova — Cosmo
• Daniela Melchior — Ura
• Nico Santos — Recorder Theel
• Miriam Shor — Recorder Vim
• Elizabeth Debicki — Ayesha
• Michael Rosenbaum — Martinex
• Sylvester Stallone — Stakar Ogord
• Stephen Blackehart — Steemie Blueliver
• Terence Rosemore — Xlomo Smeth
• Sarah Alami — Ssssalami
• Giovannie Cruz — Orloni Peddler
• Asim Chaudhry — Teefs
• Mikaela Hoover — Floor
• Judy Greer — War Pig
• Reinaldo Faberlle — Behemoth
• Tara Strong — Mainframe
• Elan Gale — Beardy Ravager
• Molly C. Quinn — Molly Ravager
• Jennifer Holland — Administrator Kwol
• Darla Delgado — Neelie
• Kai Zen — Phyla
• Seth Green — Howard the Duck
• James Gunn
• Natalia Safran — Controller
• Michael Rooker — Yondu Udonta
• Peter Davidson — Phlektik
• Gregg Henry — Grandpa Quill