Adam Devine as Phil

Alexandra Shipp as Cate Finnegan

Rose Byrne as Jexi (voice)

Ron Funches as Craig

Charlyne Yi as Elaine

Michael Peña as Kai

Wanda Sykes as Denice

Kid Cudi as Kid Cudi

Justin Hartley as Brody

Gavin Root as Phil (10 Years)

Blake Grunder as Phil (5 Years)

Richard Harder as Kickball Umpire

Ray Reinhardt as Old Man

Diana Jackson as Phil's Mother

Aaron Wilton as Phil's Dad

Kenny Lorenzetti as Fillmore Security Guard

A.J. Kirsch as Big SUV Driver

CJ Stuart as Neon Rider

September D'Angelo as Sexy Concert Pedestrian (uncredited)

Marcella Bragio as Concert Goer (uncredited)

Kelly Richardson as Cafe Meg (uncredited)

Brenda Lorena Garcia as Red Team Teen Girl (uncredited)

Alexandra Fabbri as Party Goer (uncredited)

AnnaCorey as Kim-Annoying Girl (uncredited)

Lamondo Hill II as Pedestrian (Young Professional) (credit only)

James Bumatai as Hipster (uncredited)

Blake Coronado as Concert Goer (uncredited)

Gabrielle Hayes as Young Hipster (uncredited)

Cassie Hendry as Chatterbox / Cafe Hipster (uncredited)

Baily Hopkins as Erin (uncredited)

Stephanie Johnston as Selfie Girl in Bar (uncredited)

Dawayne Jordan as Jordan (uncredited)

Jeff Lipary as Precision Driver (uncredited)

Mary Lu Marr as San Francisco Tourist (uncredited)

Sean Michael McGrory as Chatterbox Supervisor (uncredited)

Vinny O'Brien as Scooter Dude (uncredited)

Wynton Odd as Neon Rider #1 (uncredited)

Duane Ram as Chatterbox Employee (uncredited)

Vanessa Sheri as Chatterbox Employee (uncredited)

Michelle Elise Shock as Cafe Jeanne (uncredited)

Steve Tanabe as Security / Tough Roadie (uncredited)

Cabe Thompson as College Streaker Leader (uncredited)

Tony Toste as Stage Hand (uncredited)

Bianca Von Krieg as Selena - Kid Cudi's Entourage (uncredited)

Susanna Wagner as Driver (uncredited)

Johnny Walkr Jr. as Kickball Player (uncredited)

Joseph Zinsman as Greg (uncredited)