Host

Ryan Seacrest

Judge

Paula Abdul

Self - Judge

Randy Jackson

Judge

Simon Cowell

Judge

Kara DioGuardi

Contestant

Kris Allen

Self - Judge / Self - Performer

Jennifer Lopez

Self - Judge

Keith Urban

Contestant

Megan Joy Corkrey

Contestant

Anoop Desai

Self - Judge

Harry Connick Jr.

Contestant

Matt Giraud

Self - Judge

Steven Tyler

Contestant

Danny Gokey

Self - Judge / Self

Ellen DeGeneres

Contestant

Alexis Grace

Self - Judge / Self / Self - Mentor

Mariah Carey

Contestant

Allison Iraheta

Contestant

Adam Lambert

Self - Judge / Self - Performer

Nicki Minaj

Contestant

Scott MacIntyre

Self - Contestant / Self / Self - Auditionee

Phillip Phillips

Self / Self - Guest Performer / Self - Contestant

Kimberley Locke

Contestant

Jasmine Murray

Self - Host

Brian Dunkleman

Contestant

Jorge Nuñez

Contestant

Lil Rounds

Self / Self - Contestant

Katie Stevens

Contestant

Michael Sarver

Self - Contestant / Self

Todrick Hall

Self / Self - Contestant / Self - Musical Guest

Jennifer Hudson

Self - Contestant / Self

Peter Frank

Self / Self - Contestant

Chris Daughtry

Self / Self - Contestant

Jon Peter Lewis

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

Clay Aiken

Self - Contestant / Self - Guest

Tamyra Gray

Self / Self - Performer / Self - Guest

Carrie Underwood