James Gunn Director, Screenwriter, Executive Producer Chris Pratt Peter Quill , Star-Lord Actor Dave Bautista Drax Actor Karen Gillan Nebula Actor Zoe Saldaña Gamora Actor Bradley Cooper Rocket Voice Vin Diesel Groot Voice Pom Klementieff Mantis Actor Sean Gunn Kraglin Actor Old 97's Actor Michael Rooker Yondu Udonta Actor Kevin Bacon Self David Moskowitz Santa Claus Actor Giovannie Cruz Actor Kevin Feige Executive Producer Louis D'Esposito Executive Producer Victoria Alonso Executive Producer Brad Winderbaum Executive Producer Sara Smith Executive Producer Simon Hatt Executive Producer