Chris Pratt

Character: Peter Quill

Zoe Saldaña

Character: Gamora

Dave Bautista

Character: Drax

Vin Diesel

Character: Groot (voice)

Bradley Cooper

Character: Rocket (voice)

Lee Pace

Character: Ronan

Michael Rooker

Character: Yondu Udonta

Karen Gillan

Character: Nebula

Djimon Hounsou

Character: Korath

John C. Reilly

Character: Corpsman Dey

Glenn Close

Character: Nova Prime

Benicio del Toro

Character: The Collector

Laura Haddock

Character: Meredith Quill

Sean Gunn

Character: Kraglin / On Set Rocket

Peter Serafinowicz

Character: Denarian Saal

Christopher Fairbank

Character: The Broker

Krystian Godlewski

Character: On Set Groot

Wyatt Oleff

Character: Young Quill

Gregg Henry

Character: Grandpa

Janis Ahern

Character: Meredith's Mother

Solomon Mousley

Character: Meredith's Brother

Lindsay Morton

Character: Meredith's Best Friend

Robert Firth

Character: Dr. Fitzgibbon

Melia Kreiling

Character: Bereet

Tom Proctor

Character: Horuz

Nick Holmes

Character: Horuz' Mate

Max Wrottesley

Character: Sacrificed Nova Corpsman

Stan Lee

Character: Xandarian Ladies' Man

Nicole Alexandra Shipley

Character: Pretty Xandarian

Sharif Atkins

Character: Nova Arresting Pilot

Brendan Fehr

Character: Corpsman Dey's Partner

Tomas Arana

Character: Kree Ambassador

Mikaela Hoover

Character: Nova Prime's Assistant

Emmett Scanlan

Character: Head Riot Guard

Dominic Grant

Character: Angry Guard

Spencer Wilding

Character: Mean Guard

Alison Lintott

Character: Sad Woman with Horns

Alexis Rodney

Character: Moloka Dar

Nathan Fillion

Character: Monstrous Inmate

Keeley Forsyth

Character: Mottled Prisoner

Frank Gilhooley

Character: Burly Prisoner

Alexis Denisof

Character: The Other

Enzo Cilenti

Character: Watchtower Guard

Richard Katz

Character: One Legged Prisoner

Ene Frost

Character: Rifle Guard

Ronan Summers

Character: 'Drop the Leg' Guard

Ophelia Lovibond

Character: Carina

Laura Ortiz

Character: Tortured Pink Girl

Marama Corlett

Character: Pit Boss

Rosie Jones

Character: Lady of the Boot of Jemiah

Abidemi Sobande

Character: Lady of the Boot of Jemiah

Ekaterina Zalitko

Character: Lady of the Boot of Jemiah

Emily Redding

Character: Lady of the Boot of Jemiah

Stephen Blackehart

Character: Knowhere Dispatcher

Jennifer Moylan-Taylor

Character: Sad Krylorian Girl

Bruce Mackinnon

Character: One-Eyed Ravager

Ralph Ineson

Character: Ravager Pilot

Rob Zombie

Character: Ravager Navigator (voice)

Naomi Ryan

Character: Nova Centurion

John Brotherton

Character: Nova Starblaster Pilot

Graham Shiels

Character: Alien Nova Pilot

James Gunn

Character: Maskless Sakaaran

Douglas Robson

Character: Maskless Sakaaran

Rachel Cullen

Character: Corpsman Dey's Wife

Isabella Poynton

Character: Corpsman Dey's Daughter

Imogen Poynton

Character: Corpsman Dey's Daughter

David Yarovesky

Character: Goth Ravager

Miriam Lucia

Character: Crying Xandarian Citizen

Josh Brolin

Character: Thanos (uncredited)

Lloyd Kaufman

Character: Prisoner (uncredited)

Tyler Bates

Character: Ravager Pilot (uncredited)

Seth Green

Character: Howard the Duck (voice) (uncredited)

Jozef Aoki

Character: Kyln Prisoner (uncredited)

Erica Melargo

Character: Xandar Resident (uncredited)