This Is 40 Cast
The cast of This Is 40.
Paul Rudd
as Pete

Paul Rudd plays the character Pete.

Leslie Mann
as Debbie

Leslie Mann portrays the character Debbie.

John Lithgow
as Oliver

John Lithgow takes on the role of Oliver.

Megan Fox
as Desi

Megan Fox appears as the character Desi.

Maude Apatow
as Sadie

Maude Apatow brings the character Sadie to life.

Iris Apatow
as Charlotte

Iris Apatow portrays the character Charlotte.

Chris O'Dowd
as Ronnie

Chris O'Dowd plays the character Ronnie.

Jason Segel
as Jason

Jason Segel portrays the character Jason.

Melissa McCarthy
as Catherine
Graham Parker
as Graham Parker
Albert Brooks
as Larry
Lena Dunham
as Cat
Annie Mumolo
as Barb
Robert Smigel
as Barry
Charlyne Yi
as Jodi
Lisa Darr
as Clair
Billie Joe Armstrong
as Billie Joe Armstrong
Michael Ian Black
as Accountant
Wyatt Russell
as Flirty Hockey Player
Tom Yi
as Charlotte's Teacher
Tim Bagley
as Dr. Pellegrino
Ava Sambora
as Wendy
Megan Grano
as School Playdate Parent
D.A. Sandoval
as Older Pregnant Parent
Derek Basco
as Room Service Waiter
Nicol Paone
as E.R. Nurse
Lynne Alana Delaney
as Disturbed Restaurant Patron (uncredited)
Katia Kieling
as BBQ Guest (uncredited)
Bill Hader
as Desi's Store Pickup (uncredited)
Tom Everett
as Pete's Doctor
Tatum O'Neal
as Realtor
Ryan Adams
as Ryan Adams
Jessica Lee
as Party Guest #1 (uncredited)
Rebekka Johnson
as Gyno Nurse
Johnny Pemberton
as Room Service Waiter
Dan Bakkedahl
as Dentist
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