IF Cast
The cast of IF.
Cailey Fleming
as Bea

Cailey Fleming takes on the role of Bea.

Ryan Reynolds
as Cal

Ryan Reynolds plays The Man Upstairs.

John Krasinski
as Dad / Marshmallow (voice)

John Krasinski portrays the character by.

Fiona Shaw
as Grandmother

Fiona Shaw portrays Grandmother.

Steve Carell
as Blue (voice)

Steve Carell voices the character Blue.

Phoebe Waller-Bridge
as Blossom (voice)

Phoebe Waller-Bridge voices Blossom.

Louis Gossett Jr.
as Lewis (voice)

Louis Gossett Jr. voices a character.

Alan Kim
as Benjamin
Liza Colón-Zayas
as Janet
Bobby Moynihan
as Jeremy

Bobby Moynihan takes on a character in the movie.

Catharine Daddario
as Bea’s Mom
Audrey Hoffman
as Bea (Ages 3 & 5)
Vince Vaughn
as (voice)
Laquet Sharnell Pringle
as Receptionist
Ed Herbstman
as Deli Guy
Barbara Andres
as Woman Upstairs
Alexander Rivero
as Custodian
Shauna Pinkett
as Hospital Receptionist
Sa'Raya Paris Johnson
as 7 Year-Old Girl
Marta Siteiya Moipei
as Coffee Shop Barista
David Weissmann
as Young Jeremy
Awkwafina
as Bubble (voice)
Emily Blunt
as Unicorn (voice)
George Clooney
as Spaceman (voice)
Bradley Cooper
as Ice (voice)
Matt Damon
as Flower (voice)
Bill Hader
as Banana (voice)
Richard Jenkins
as Art Teacher (voice)
Keegan-Michael Key
as Slime (voice)
Blake Lively
as Octopuss (voice)
Sebastian Maniscalco
as Magician Mouse (voice)
Christopher Meloni
as Cosmo (voice)
Matthew Rhys
as Ghost (voice)
Sam Rockwell
as Guardian Dog (voice)
Maya Rudolph
as Alligator (voice)
Amy Schumer
as Gummy Bear (voice)
Allyson Seeger
as Viola (voice)
Jon Stewart
as Robot (voice)
Brad Pitt
as Keith (voice)
Craig 'Radioman' Castaldo
as Radio Man (uncredited)
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