Chris Pratt

Peter Quill

Zoe Saldaña

Gamora

Dave Bautista

Drax

Vin Diesel

Groot (voice)

Bradley Cooper

Rocket (voice)

Lee Pace

Ronan

Michael Rooker

Yondu Udonta

Karen Gillan

Nebula

Djimon Hounsou

Korath

John C. Reilly

Corpsman Dey

Glenn Close

Nova Prime

Benicio del Toro

The Collector

Laura Haddock

Meredith Quill

Sean Gunn

Kraglin / On Set Rocket

Peter Serafinowicz

Denarian Saal

Christopher Fairbank

The Broker

Wyatt Oleff

Young Quill

Gregg Henry

Grandpa

Solomon Mousley

Meredith's Brother

Robert Firth

Dr. Fitzgibbon

Melia Kreiling

Bereet

Tom Proctor

Horuz

Nick Holmes

Horuz' Mate

Max Wrottesley

Sacrificed Nova Corpsman

Stan Lee

Xandarian Ladies' Man

Nicole Alexandra Shipley

Pretty Xandarian

Sharif Atkins

Nova Arresting Pilot

Brendan Fehr

Corpsman Dey's Partner

Tomas Arana

Kree Ambassador

Mikaela Hoover

Nova Prime's Assistant

Emmett Scanlan

Head Riot Guard

Dominic Grant

Angry Guard

Spencer Wilding

Mean Guard

Alison Lintott

Sad Woman with Horns

Alexis Rodney

Moloka Dar

Nathan Fillion

Monstrous Inmate

Keeley Forsyth

Mottled Prisoner

Frank Gilhooley

Burly Prisoner

Alexis Denisof

The Other

Enzo Cilenti

Watchtower Guard

Richard Katz

One Legged Prisoner

Ene Frost

Rifle Guard

Ronan Summers

'Drop the Leg' Guard

Ophelia Lovibond

Carina

Laura Ortiz

Tortured Pink Girl

Marama Corlett

Pit Boss

Ekaterina Zalitko

Lady of the Boot of Jemiah

Emily Redding

Lady of the Boot of Jemiah

Stephen Blackehart

Knowhere Dispatcher

Bruce Mackinnon

One-Eyed Ravager

Ralph Ineson

Ravager Pilot

Rob Zombie

Ravager Navigator (voice)

Naomi Ryan

Nova Centurion

John Brotherton

Nova Starblaster Pilot

Graham Shiels

Alien Nova Pilot

James Gunn

Maskless Sakaaran

Rachel Cullen

Corpsman Dey's Wife

Isabella Poynton

Corpsman Dey's Daughter

David Yarovesky

Goth Ravager

Miriam Lucia

Crying Xandarian Citizen

Josh Brolin

Thanos (uncredited)

Lloyd Kaufman

Prisoner (uncredited)

Tyler Bates

Ravager Pilot (uncredited)

Seth Green

Howard the Duck (voice) (uncredited)

Erica Melargo

Xandar Resident (uncredited)