Host

Ryan Seacrest

Judge

Randy Jackson

Judge

Jennifer Lopez

Self - Judge

Simon Cowell

Judge

Steven Tyler

Contestant

Casey Abrams

Self - Judge

Paula Abdul

Contestant

Naima Adedapo

Self - Judge

Keith Urban

Contestant

Lauren Alaina

Contestant

Jovany Barreto

Self - Judge

Harry Connick Jr.

Self - Judge

Kara DioGuardi

Contestant

Kendra Chantelle

Contestant

Jordan Dorsey

Self - Judge / Self

Ellen DeGeneres

Contestant

James Durbin

Self - Judge / Self / Self - Mentor

Mariah Carey

Contestant

Clint Jun Gamboa

Self - Judge / Self - Performer

Nicki Minaj

Contestant

Tim Halperin

Contestant

Ashthon Jones

Self - Contestant / Self / Self - Auditionee

Phillip Phillips

Self / Self - Guest Performer / Self - Contestant

Kimberley Locke

Contestant

Stefano Langone

Self - Host

Brian Dunkleman

Contestant

Brett Loewenstern

Self / Self - Contestant

Katie Stevens

Contestant

Jacob Lusk

Self - Contestant / Self

Todrick Hall

Contestant

Scotty McCreery

Self / Self - Contestant / Self - Musical Guest

Jennifer Hudson

Contestant

Paul McDonald

Contestant

Thia Megia

Self - Contestant / Self

Peter Frank

Self / Self - Contestant

Chris Daughtry

Contestant

Haley Reinhart

Contestant

Karen Rodriguez

Self / Self - Contestant

Jon Peter Lewis

Self - Guest Host / Self - Contestant / Self - Guest

Clay Aiken

Contestant

Robbie Rosen

Self - Contestant / Self - Guest

Tamyra Gray

Contestant

Pia Toscano

Self / Self - Performer / Self - Guest

Carrie Underwood

Contestant

Lauren Turner

Contestant

Tatynisa Wilson

Contestant

Julie Zorrilla

Contestant

Rachel Zevita