Steve Carell as Ben Cooper

Jennifer Garner as Kelly Cooper

Ed Oxenbould as Alexander Cooper

Dylan Minnette as Anthony Cooper

Kerris Dorsey as Emily Cooper

Elise Vargas as Baby Trevor

Zoey Vargas as Baby Trevor

Sidney Fullmer as Becky Gibson

Bella Thorne as Celia

Megan Mullally as Nina

Mekai Curtis as Paul Dumphy

Lincoln Melcher as Philip Parker

Reese Hartwig as Elliot Gibson

Martha Hackett as Mrs. Gibson

Mary Mouser as Audrey Gibson

Alex Désert as Mr. Rogue

Toni Trucks as Steph

Liz Carey as Yoga Instructor

Rizwan Manji as Mr. Cellars

Eric Edelstein as Mr. Tonucci

Tara Brook as Receptionist Abby

Andrew Franklin as Captain Hook

Cassandra Braden as High School Teacher

Ruben Vernier as Video Game Receptionist

Donald Glover as Greg

Joel Johnstone as Logan

Ben Greene as Joaquin

Scott Keiji Takeda as Video Game Exec Yoshi

Burn Gorman as Mr. Brand

Angelyna Martinez-Boyd as Bookstore Employee

Dennison Samaroo as Pharmacist

Jesse Garcia as Dwayne

Joey Capone as Jimmy

Jennifer Coolidge as Ms. Suggs

Jonathan Slavin as Tux Shop Employee

Jonah Goldman as Actor John Darling

Katelyn Hilario as Actor Wendy Darling

Samantha Logan as Heather

Alexander Biffin as Thunder from Down Under Dancer

Dylan Yeandle as Thunder from Down Under Dancer

David Francis Harris as Thunder from Down Under Dancer

Steve Bannos as Security Guard

Michael Blaiklock as Nagamaki Host

Cort Rogers as Stage Hand

Alina Phelan as Pregnant Sheila

Serena Kashmir as Audrey's Friend (uncredited)

Dick Van Dyke as Dick Van Dyke (uncredited)