Big Cast
The cast of Big.
Tom Hanks
as Josh Baskin

Tom Hanks stars as Josh Baskin, a young boy who turns into an adult overnight and navigates the challenges of adulthood with a childlike perspective.

Elizabeth Perkins
as Susan

Elizabeth Perkins plays Susan, a colleague of Josh who becomes his love interest as he continues his journey as an adult.

Robert Loggia
as MacMillan

Robert Loggia portrays MacMillan, the owner of the toy company where adult Josh starts working and forms a special bond with him.

John Heard
as Paul

John Heard appears as Paul, a supportive colleague of Josh who helps him adjust to his new adult life.

Jared Rushton
as Billy

Jared Rushton takes on the role of Billy, Josh's best friend who helps him navigate the challenges of being an adult.

David Moscow
as Young Josh

David Moscow plays Young Josh, the character before he magically transforms into an adult, portrayed by Tom Hanks.

Jon Lovitz
as Scotty Brennen

Jon Lovitz is Scotty Brennen, a colleague of Josh who becomes envious of his success and tries to uncover his secret.

Mercedes Ruehl
as Mrs. Baskin

Mercedes Ruehl appears as Mrs. Baskin, Josh's concerned mother who searches for him as he navigates his new adult life.

Josh Clark
as Mr. Baskin

Josh Clark portrays Mr. Baskin, Josh's father who is worried about his sudden disappearance and transformation.

Kimberlee M. Davis
as Cynthia Benson

Kimberlee M. Davis plays Cynthia Benson, a character within the movie's world where adult Josh finds himself working and adapting to.

Oliver Block
as Freddie Benson

Oliver Block portrays Freddie Benson, a character within the movie's world who interacts with adult Josh during his time working at the toy company.

Erika Katz
as Cynthia's Friend

Erika Katz is Cynthia's Friend, a character within the movie who adds to the backdrop of the world in which adult Josh finds himself as he navigates his new life.

Allan Wasserman
as Gym Teacher
Mark Ballou
as Derek
Gary Klar
as Ticket Taker
Alec Von Sommer
as First Brother
Chris Dowden
as Second Brother
Rockets Redglare
as Motel Clerk
Jamie Tirelli
as Spanish Voice (voice)
Paul Herman
as Schizo
Nancy Giles
as Administrative Woman
Jordan Thaler
as Administrative Clerk
Dana Kaminski
as Personnel Receptionist
Harvey Miller
as Personnel Director
Tracy Reiner
as Test Market Researcher
James Eckhouse
as Supervisor
Linda Gillen
as Woman in Red Dress
Mildred R. Vandever
as Receptionist
Bert Goldstein
as First Executive
Kevin Meaney
as Executive #2
Peter McRobbie
as Executive #3
Paul J.Q. Lee
as Executive #4
Debra Jo Rupp
as Miss Patterson
Keith Reddin
as Payroll Clerk
Lela Ivey
as Bank Teller
Dolores Messina
as Real Estate Agent
Gordon Press
as Moving Man
George J. Manos
as Limousine Driver
Vince Cupone
as Photon Laser Gunfighter
Susan Wilder
as Karen
John Rothman
as Phil
Judd Trichter
as Adam
Pasquale Pugliese
as Tenor / Dough Man
Tom Coviello
as Singing Waiter
Richard Devia
as Singing Waiter
Teddy Holiavko
as Singing Waiter
Augusto Mariani
as Singing Waiter
Alfredo Monti
as Singing Waiter
Sergio Mosetti
as Singing Waiter
Armando Penso
as Singing Waiter
Edward Schick
as Piano Player
F. Benjamin Stimler
as Boy in Leaves
Jonathan Isaac Landau
as Boy in Leaves
Samantha Larkin
as Girl Friend of Cynthia
Bruce Jarchow
as Photographer
Vaughn Sandman
as Boy on Baseball Field
Pawl Bazile
as Child at Taxi Stand (uncredited)
Brian J. Cano
as Basketball Player (uncredited)
Victor Competiello
as Bartender (uncredited)
Kevin Fennessy
as Handball Spectator (uncredited)
Frances Fisher
as Billy's Mother (Extended Version) (uncredited)
Matt Mindell
as Friend (uncredited)
Brooke Marie Procida
as Student (uncredited)
Karen Starr
as Party Guest (uncredited)
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