The Last Mimzy

Joely Richardson

Jo Wilder

Timothy Hutton

David Wilder

Rainn Wilson

Larry White

Michael Clarke Duncan

Nathaniel Broadman

Kathryn Hahn

Naomi Schwartz

Rhiannon Leigh Wryn

Emma Wilder

Chris O'Neil

Noah Wilder

Kirsten Alter

Sheila Broadman

Marc Musso

Harry

Irene Snow

Teacher in Meadow

Nicole Muñoz

Kid with Braces

Scott E. Miller

School Guard

Megan McKinnon

Wendy

Randi Lynne

Julie the Babysitter

Tom Heaton

Future Scientist

Fred Keating

Police Captain

Calum Worthy

Teenage Cyborg

John Shaw

Dr. Rose

Patrick Gilmore

FBI Task Force Agent

John Burnside

Future Scientist's Co-Worker

Sam Polin

Armed Cyborg

Phillip Brooks

Armed Cyborg

Daniel Bacon

Technician

Carlo Fanella

Technician

Paul Jarrett

Technician

Jerry Wasserman

Utilities Commisioner

Camyar Chai

Stu

Dagmar Midcap

Newscaster

Chad Cole

FBI Task Force Agent

Kaaren de Zilva

CPS Officer

David Joshi

FBI Video Technician

Bruce Harwood

Scientist

Kathleen Duborg

Scientist

Hiro Kanagawa

Scientist

Brian Greene

Intel Scientist

Curtis Caravaggio

Army Officer

Mackenzie Hamilton

Teenage Cyborg

Elias Calogeros

Child in Meadow

Caleb Kemble

Child in Meadow

Joanna Coons

Child in Meadow

Grace Walker

Child in Meadow

Evan Leeson

Child in Meadow

Eliana MacFarlane

Child in Meadow

Sophia Wik

Child in Meadow

Amanda Wik

Child in Meadow

Elora Penner

Child in Meadow

Sawyer Nicholson

Child in Meadow

Tamatea Westby

Child in Meadow

Julia Arkos

Kindergarten Teacher

Erica Jones

Little Girl (voice) (uncredited)