Why Him?

Bryan Cranston

as Ned Fleming

James Franco

as Laird Mayhew

Zoey Deutch

as Stephanie Fleming

Megan Mullally

as Barb Fleming

Griffin Gluck

as Scotty Fleming

Keegan-Michael Key

as Gustav

Kaley Cuoco

as Justine (voice)

Cedric the Entertainer

as Lou Dunne

Zack Pearlman

as Kevin Dingle

Jee Young Han

as Marnie Dingle

Grace Hazelett

as Vanessa Dingle

Sadie Hazelett

as Vanessa Dingle

Casey Wilson

as Missy Pederman

Andrew Rannells

as Blaine Pederman

Adam Devine

as Tyson Modell

Tangie Ambrose

as Patty Dunne

Steve Bannos

as Burt

Steve Aoki

as DJ Steve Aoki

Richard Blais

as Richard Blais

Elon Musk

as Elon Musk

Gene Simmons

as Gene Simmons

Paul Stanley

as Paul Stanley

Peter Criss

as Peter Criss

Chris A. Liscomb

as Chris A. Liscomb

Bob Stephenson

as Jerry

Mary Pat Gleason

as Joyce

Jacob Kemp

as Randy

Juliette B. Reiss

as Applebee's Waitress

Melissa Graver

as Applebee's Waitress

Steffen Dziczek

as Applebee's Waiter

Jimmy Badstibner

as Fleming Company Employee

Ramy Youssef

as Coder in Kitchen

Brenda Good

as Laird's Employee

Harrison Bieker

as Laird's Employee

Greg Worswick

as Bartender

George Kareman

as Party Waiter

Toby Turner

as Party Guest

Craig Hosking

as Helicopter Pilot

Lucy Angelo

as Gamer Girl (uncredited)

Katelyn Brooke

as Kissing Woman (uncredited)

Isabel Dresden

as Quirky Waitress (uncredited)

Lynly Ehrlich

as Printer Employee (uncredited)

Stevens Gaston

as Keith (uncredited)

Liam Gillen

as Choir Member #4 (uncredited)

Braxton Goe

as Party Guest (uncredited)

Alex J. Joseph

as Underwear Swimmer (uncredited)

Jocelyn Marie

as Steph's Friend (uncredited)

Derek McEntire

as Video Game Coder (uncredited)

Arber Mehmeti

as Serbian Guard 1 (uncredited)

Isabelle Menard

as Party Guest (uncredited)

Tim Neff

as Kissing Man (uncredited)

Saul Preciado-Garcia

as Peruvian Villager (uncredited)

Evan Seidlitz

as Bartender (uncredited)

Lee Stickler

as Choir Member #2 (uncredited)

Caleb Thomas

as Scotty (uncredited)

Emely von Oest

as Ned's Friend (uncredited)

Burnie Burns

as Self