Ben Schwartz as Sonic (voice)

James Marsden as Tom Wachowski

Tika Sumpter as Maddie Wachowski

Jim Carrey as Dr. Robotnik

Natasha Rothwell as Rachel

Adam Pally as Wade Whipple

Neal McDonough as Major Bennington

Lee Majdoub as Agent Stone

Tom Butler as Vice Chairman Walters

Frank C. Turner as Crazy Carl

Melody Nosipho Niemann as Jojo

Shannon Chan-Kent as Roadhouse Waitress

Brad Kelly as Roadhouse Thug

Elfina Luk as Secretary of Homeland Security

Garry Chalk as Navy Chief of Staff

Michael Hogan as Air Force Chief of Staff

Peter Bryant as Army Chief of Staff

Jeremy Arnold as Businessman

Jeanie Cloutier as Businesswoman

Emma Oliver as Parisian Little Kid

Bailey Skodje as Minivan Kid

Dean Petriw as Minivan Kid

Jeff Sanca as Minivan Dad

Lisa Chandler as Minivan Mom

Chris Gailus as News Anchor

Bethel Lee as Receptionist

Anthony Santiago as Senior Glass Installer

Jeremiah Oh as Junior Glass Installer

Charles Heffernan as Mime

Terence Kelly as Farmer Zimmer

Sean Campbell as Bartender

Scott Patey as Bar Patron / On Set Sonic

Sandy Robson as Bar Patron

Andrea Marcum as Yoga Instructor

Benjamin Valic as Baby Sonic (voice)

Donna Jay Fulks as Longclaw (voice)

Colleen O'Shaughnessey as Tails (voice) (uncredited)