Paul Rudd as Peter Klaven
J as on Segel
R as hida Jones
Jaime Pressly
Jon Favreau
J.K. Simmons
Andy Samberg as Robby Klaven
Carla Gallo as Denise
Joe Lo Truglio as High-Voiced Guy
Lou Ferrigno as Himself
Thom as Lennon
Aziz Ansari as Eugene
Liz Cackowski as Debbie
Brandon Molale as Rugby Player
Ian Roberts
Mather Zickel as Gus
Nick Kroll as Larry
Rob Huebel as Tevin
Catherine Reitman as Shira D
Dian Van Patten as Realtor
Sarah Burns as Hailey
Vitaliy Versace as Christopher
Jill Bartlett as Divorcee
Daniel Bateman as Shopping Teen
Melissa Rauch as Woman Yelling
Aaron D. Spears as Terrell
Colleen Crabtree as Hillary Elaine
Vitta Quinn as Cherise
Skoti Collins as Bride's Family Member
Jordan Feldman as Jordan
Chris Spinelli as Gym Member
Kulap Vilaysack as Layla
Kelly Nienaltowski as Venice Beach Goer
Keri Safran as Jar Waitress
Lydia Schuler as Eugene's Wife
Zachary Chitwood as Speedo Model
Brad Everett Young as Carpooler
Sonia L as zlo
Marquessa Moreland as Peter's Date
Greg Tuculescu as Hollywood Guy
Ethan S. Smith as Sydney's Buddy
Priscilla Rios as Wedding Party Guest
Caroline Farah as Carolyn
Nelson Franklin as Sydney's Buddy #3
Yvetta Young as Family Friend
Danny Salomon as Himself
Brian Sampson as Carpooler #1
Jean Villepique as Receptionist
Jon Baggio as Locker Room Attendant
Joey Magnusson as Gil's Wife
Greg Levine as Date Guy
James P. Engel as Barry's Buddy
Scott Carino as Man at Counter