Chris Pine 
 as Cadet James T. Kirk

Zachary Quinto 
 as Commander Spock

Leonard Nimoy 
 as Ambassador Spock

Eric Bana 
 as Captain Nero

Bruce Greenwood 
 as Captain Christopher Pike

Karl Urban 
 as Dr. Leonard 'Bones' McCoy

Zoe Saldaña 
 as Lieutenant Nyota Uhura

Simon Pegg 
 as Lieutenant Commander Montgomery 'Scotty' Scott

John Cho 
 as Lieutenant Hikaru Sulu

Anton Yelchin 
 as Ensign Pavel Chekov

Ben Cross 
 as Sarek

Winona Ryder 
 as Amanda Grayson

Chris Hemsworth 
 as Commander George Kirk

Jennifer Morrison 
 as Winona Kirk

Rachel Nichols 
 as Galia

Faran Tahir 
 as Captain Robau

Clifton Collins Jr. 
 as Ayel

Tony Elias 
 as Officer Pitts

Sean Gerace 
 as Tactical Officer

Randy Pausch 
 as Kelvin Crew Member

Tim Griffin 
 as Kelvin Engineer

Freda Foh Shen 
 as Kelvin Helmsman

Kasia Kowalczyk 
 as Kelvin Alien

Jason Brooks 
 as Romulan Helmsman

Sonita Henry 
 as Kelvin Doctor

Kelvin Yu 
 as Medical Technician

Marta Martin 
 as Medical Technician

Tavarus Conley 
 as Kelvin Crew Member

Jeff Castle 
 as Kelvin Crew Member

Billy Brown 
 as Med Evac Pilot

Jimmy Bennett 
 as Young James T. Kirk

Greg Grunberg 
 as Stepdad (voice)

Spencer Daniels 
 as Johnny

Jeremy Fitzgerald 
 as Iowa Cop

Zoe Chernov 
 as Vulcan Student

Max Chernov 
 as Vulcan Student

Jacob Kogan 
 as Young Spock

Lorenzo James Henrie 
 as Vulcan Bully

Colby Paul 
 as Vulcan Bully

Cody Klop 
 as Vulcan Bully

Akiva Goldsman 
 as Vulcan Council Member

Anna Katarina 
 as Vulcan Council Member

Douglas Tait 
 as Long Face Bar Alien

Tony Guma 
 as Lew the Bartender

Gerald W. Abrams 
 as Barfly

James McGrath 
 as Barfly

Jason Matthew Smith 
 as Burly Cadet

Marcus Young 
 as Burly Cadet

Bob Clendenin 
 as Shipyard Worker

Darlena Tejeiro 
 as Flight Officer

Reggie Lee 
 as Test Administrator

Jeffrey Byron 
 as Test Administrator

Jonathan Dixon 
 as Simulator Tactical Officer

Tyler Perry 
 as Admiral Richard Barnett

Ben Binswagner 
 as Admiral James Komack

Margot Farley 
 as College Council Stenographer

Paul McGillion 
 as Barracks Officer

Lisa Vidal 
 as Barracks Officer

Alex Nevil 
 as Shuttle Officer

Kimberly Arland 
 as Kimberly Arland

Sufe Bradshaw 
 as Cadet Alien

Jeff Chase 
 as Cadet Alien

Charles Haugk 
 as Enterprise Crew Member

Nana Hill 
 as Enterprise Crew Member

John Blackman 
 as Enterprise Crew Member

Jack Millard 
 as Enterprise Crew Member

Shaela Luter 
 as Enterprise Crew Member

Sabrina Morris 
 as Enterprise Crew Member

Michelle Parylak 
 as Enterprise Crew Member

Osgood Perkins 
 as Enterprise Communiations Officer

Amanda Foreman 
 as Hannity

Michael Berry Jr. 
 as Romulan Tactical Officer

Lucia Rijker 
 as Romulan Communications Officer

Pasha D. Lychnikoff 
 as Romulan Officer

Matt Beisner 
 as Romulan Crew Member

Neville Page 
 as Romulan Crew Member

Jesper Inglis 
 as Romulan Crew Member

Greg Ellis 
 as Chief Engineer Olsen

Marlene Forte 
 as Transport Chief

Leonard O. Turner 
 as Vulcan Elder

Mark Bramhall 
 as Vulcan Elder

Ronald F. Hoiseck 
 as Vulcan Elder

Irene Roseen 
 as Vulcan Elder

Jeff O'Haco 
 as Vulcan Elder

Scottie Thompson 
 as Nero's Wife

Deep Roy 
 as Keenser

Majel Barrett 
 as Starfleet Computer (voice)

Ronnie Steadman 
 as Shuttle Pilot (uncredited)

Rico E. Anderson 
 as Council Member - Captain Kelley Bogel (uncredited)

Richard Arnold 
 as Romulan Science Tech (uncredited)

Tad Atkinson 
 as Amphibian Prisoner (uncredited)

Leslie Augustine 
 as Doctor (uncredited)

Johnny Baca 
 as Starfleet Cadet (uncredited)

Diora Baird 
 as The Wrong Orion

Sala Baker 
 as Drill Tower Romulan (uncredited)

Leo Baligaya 
 as Starfleet Cadet (uncredited)

Corey Becker 
 as Starfleet Cadet (uncredited)

Larry Blackman 
 as Transport Chief (uncredited)

Jessica Boss 
 as Bridgeport Cadet (uncredited)

Neil S. Bulk 
 as Starfleet Cadet (uncredited)

Etalvia Cashin 
 as Starfleet Cadet (uncredited)

James Cawley 
 as Enterprise Crewmember (uncredited)

Brad Champagne 
 as Starfleet Cadet (uncredited)

Zachary Culbertson 
 as Starfleet Cadet (uncredited)

Jeffrey De Serrano 
 as Cop (uncredited)

T.C. De Witt 
 as Starfleet Cadet (uncredited)

Christopher Doohan 
 as Starfleet Officer (uncredited)

Claire Doré 
 as Enterprise Crew Member (uncredited)

Etienne Eckert 
 as Vulcan Federation Officer (uncredited)

Ken Edling 
 as Doctor (uncredited)

Aliza Finley 
 as Hurried Cadet with Clipboard (uncredited)

Ian Fisher 
 as Shipyard Worker (uncredited)

Anna Florence 
 as Vulcan Cadet (uncredited)

Mathew Thomas Foss 
 as Starfleet Cadet (uncredited)

Massi Furlan 
 as Missile Launcher (uncredited)

Tommy Germanovich Jr. 
 as FourSquare (uncredited)

Mary Grace 
 as Shipyard Bar Patron (uncredited)

Wyatt Gray 
 as Starfleet Cadet (uncredited)

Nancy Guerriero 
 as Crew Member (uncredited)

Jarrell Hall 
 as Starfleet Cadet (uncredited)

Justin Rodgers Hall 
 as Starfleet Security Officer (uncredited)

Jeffery Hauser 
 as Kelvin Crew Member (uncredited)

Brad William Henke 
 as Uncle Frank (uncredited) (unconfirmed)

Ryan T. Husk 
 as Enterprise Crew Member (uncredited)

Elizabeth Ingalls 
 as Enterprise Nurse (uncredited)

Sierra Kane 
 as Starfleet Cadet (uncredited)

Christopher Karl Johnson 
 as Shipyard Worker (uncredited)

Jolene Kay 
 as Enterprise Crew Member (uncredited)

Lauren Mary Kim 
 as Kelvin Bridge Officer (uncredited)

Sarah Klaren 
 as Starfleet Cadet (uncredited)

Makiko Konishi 
 as Enterprise Crew Member (uncredited)

Tashana Landray 
 as Starfleet Cadet (uncredited)

Daniel D. Lee 
 as Starfleet Commander (uncredited)

Anne Leighton 
 as Enterprise Crew Member (uncredited)

James Lew 
 as Romulan (uncredited)

Jill Lover 
 as Young Vulcan Midwife (uncredited)

Steve Luna 
 as Lieutenant Star Fleet Command (uncredited)

Aaron Lynch 
 as Flight Operational Air Safety Conductor (uncredited)

Justin Malachi 
 as Starfleet Cadet (uncredited)

Nav Mann 
 as Romulan Crew Member Placing Bomb (uncredited)

Paul Marshall 
 as Bar Patron (uncredited)

Owen Martin 
 as Alien Cadet / Enterprise Crew (uncredited)

Taylor McCluskey 
 as Kelvin Alien (uncredited)

Matthew McGregor 
 as Starfleet Cadet (uncredited)

Caitlin McKenna 
 as Kelvin Computer (uncredited)

Andrew Mew 
 as Starfleet Cadet (uncredited)

Patrizia Milano 
 as Councilwoman (uncredited)

Heidi Moneymaker 
 as Kelvin Crewmember (uncredited)

Kevin Moser 
 as Enterprise Crewman (uncredited)

Jonathan Dunkerley Newkerk 
 as Starfleet Cadet (uncredited)

Westley Nguyen 
 as Enterprise Crew Member (uncredited)

Jim Nieb 
 as Sal (uncredited)

Andres Perez-Molina 
 as Romulan Crew Member (uncredited)

Mark Phelan 
 as Romulan (uncredited)

Damion Poitier 
 as Drill Hanson #1 (uncredited)

Rahvaunia 
 as Academy Teacher (uncredited)

Bertrand Roberson Jr. 
 as Shuttle Cadet (uncredited)

Deborah Rombaut 
 as Starfleet Cadet (uncredited)

Leonard Jonathan Ruebe 
 as Starfleet Cadet (uncredited)

Darth Schuhe 
 as Injured Officer in Sickbay (uncredited)

Ramona Seymour 
 as Starfleet Cadet (uncredited)

William Morgan Sheppard 
 as Vulcan Science Minister (uncredited)

Katie Soo 
 as Enterprise Crew Member (uncredited)

Joseph Stephens Jr. 
 as Cadet Officer (uncredited)

Joseph Steven 
 as Romulan Engineer (uncredited)

T.J. Storm 
 as Klingon Agitator (uncredited)

Kaitlin Sullivan 
 as Starfleet Cadet (uncredited)

Paul Townsend 
 as Starfleet Security Officer (uncredited)

Scott Trimble 
 as Klingon Prison Guard (uncredited)

Errik Tustenuggee 
 as Federation Captain Cartwright (uncredited)

Ravi Valleti 
 as Cadet at Trial (uncredited)

Jason Vaughn 
 as Starfleet Cadet (uncredited)

A.J. Verel 
 as Enterprise Crewman (uncredited)

Brian Waller 
 as Vulcan Council Member (uncredited)

Steve Wharton 
 as Star Fleet Cadet (uncredited)

Wil Wheaton 
 as Romulan (voice) (uncredited)

Rob Wood 
 as Enterprise Crew Member (uncredited)

Lynnanne Zager 
 as Enterprise Computer (voice) (uncredited)