Jeremy Jordan

Character: Neil Bogart

Michelle Monaghan

Character: Beth Weiss

Jay Pharoah

Character: Cecil Holmes

Lyndsy Fonseca

Character: Joyce Biawitz

Dan Fogler

Character: Buck Reingold

Peyton List

Character: Nancy Weiss

James Wolk

Character: Larry Harris

Michael Ian Black

Character: Bill Aucoin

Chris Redd

Character: Frankie Crocker

Sebastian Maniscalco

Character: Giorgio Moroder

Jason Isaacs

Character: Al Bogatz

Sam Nelson Harris

Character: Paul Stanley

Casey Likes

Character: Gene Simmons

Ledisi

Character: Gladys Knight

Alex Gaskarth

Character: Peter Criss

Pink Sweat$

Character: Bill Withers

Wiz Khalifa

Character: George Clinton

Jason Derulo

Character: Ronald Isley

Tayla Parx

Character: Donna Summer

Winslow Fegley

Character: Young Neil Bogart

Doron Bell

Character: Rudolph Isley

Caylee Cowan

Character: Farrah Lee

Vincent Pastore

Character: Big Joey

Ellen David

Character: Ruth Bogatz

George Nickolas K.

Character: Steven Tyler

Dusan Dukic

Character: Gary Eli

Obi Abili

Character: Edwin Hawkins

David Reale

Character: Darren

Nick Sandow

Character: Mo Ostin

Christopher Hayes

Character: Damon

Johnny Gill

Character: Clarence Burke Jr.

Charlie Ebbs

Character: Murray-The-K

Delia Lisette Chambers

Character: Mimi Gaines Sommers

Marcel Nahapetian

Character: Young Tim Bogart

Seaton Smith

Character: Manny

Cait Alexander

Character: Frankie's Girl

John Skelley

Character: Bill Darnell

Emily Rose David

Character: Marilyn

Alex Gravenstein

Character: FBI Agent Horace