Laura Haddock
Viviane Wembly
Peter Cullen
Optimus Prime (voice)
Anthony Hopkins
Sir Edmund Burton
Erik Aadahl
Bumblebee (voice)
Josh Duhamel
Colonel William Lennox
Benjamin Maurice Webb
Hengist
Glenn Morshower
General Morshower
John Turturro
Agent Simmons
Claude Knowlton
JPL Director
Jacob Zachar
Young JPL Engineer
Maggie Steed
Viviane's Grandmum
Sara Stewart
Viviane's Mum
Phoebe Nicholls
Aunt Helen
Stephen Hogan
Viviane's Father
Mark Dexter
U.K. Prime Minister
Rob Jarvis
Downing Street Policeman
Elizabeth Croft
High Society Woman
Emily Tierney
High Society Woman
Wolfgang Young
Saxon Knight
Pauline McLynn
Female Researcher
Seeta Indrani
News Reporter
Phill Langhorne
News Reporter
Simon Harrison
News Reporter
Wendy Albiston
Submarine Ticket Agent
John Burke
Pentagon Colonel
Barbara Eve Harris
Pentagon Colonel
Granville Ames
Pentagon Official
Jim Wisniewski
Government Suit
Mitch Pileggi
TRF Group Leader
Remi Adeleke
TRF Lieutenant
Brian William Price
TRF Operator
Vincent Jerome
TRF Operator
Alan Pietruszewski
F-35 Pilot
Christoper Vasquez
F-16 Pilot
Krista Schaeffer
Osprey Pilot
Walles Hamonde
American Serviceman
Tom Wright
Military Attache
Dan Warner
Military Attache
Michael Richard
Namibian Scientist
Charlie Bouguenon
Namibian Scientist
Jandre le Roux
Namibian Scientist
Frank Welker
Megatron (voice)
John Goodman
Hound (voice)
Ken Watanabe
Drift (voice)
Steve Buscemi
Daytrader (voice)
Reno Wilson
Mohawk / Sqweeks (voice)
John DiMaggio
Nitro Zeus / Crosshairs (voice)
Jess Harnell
Barricade (voice)
Mark Ryan
WWI Tank / Lieutenant (voice)
Steven Barr
Nitro Zeus / Volleybot (voice)
Gil Birmingham
Chief Sherman (uncredited)
Eddie Hall
Saxon Warrior (uncredited)
Kevin Kent
TRF Group Leader (uncredited)
Jude Poyer
German Soldier (uncredited)
