Judge

Katy Perry

Self - Host

Ryan Seacrest

Judge

Luke Bryan

Judge

Lionel Richie

Self - Judge

Randy Jackson

Self - Judge

Simon Cowell

Contestant

Aliana Jester

Self - Judge

Paula Abdul

Contestant

Arthur Gunn

Self - Judge / Self - Performer

Jennifer Lopez

Contestant

Cyniah Elise

Self - Judge

Keith Urban

Contestant

DeWayne Crocker Jr.

Self - Judge

Harry Connick Jr.

Self - Judge

Kara DioGuardi

Contestant

Dillon James

Contestant

Faith Becnel

Self - Judge

Steven Tyler

Contestant

Francisco Martin

Self - Judge / Self

Ellen DeGeneres

Contestant

Franklin Boone

Self - Judge / Self / Self - Mentor

Mariah Carey

Contestant

Grace Leer

Self - Judge / Self - Performer

Nicki Minaj

Contestant

Jonny West

Self - Contestant / Self / Self - Auditionee

Phillip Phillips

Contestant

Jovin Webb

Self / Self - Guest Performer / Self - Contestant

Kimberley Locke

Contestant

Julia Gargano

Self - Host

Brian Dunkleman

Contestant

Just Sam

Self / Self - Contestant

Katie Stevens

Contestant

Kimmy Gabriela

Self - Contestant / Self

Todrick Hall

Contestant

Lauren Spencer-Smith

Self / Self - Contestant / Self - Musical Guest

Jennifer Hudson

Contestant

Louis Knight

Self - Contestant / Self

Peter Frank

Contestant

Makayla Phillips

Self / Self - Contestant

Chris Daughtry

Contestant

Nick Merico

Self / Self - Contestant

Jon Peter Lewis

Contestant

Olivia Ximines

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

Clay Aiken

Contestant

Sophia Wackerman

Self - Contestant / Self - Guest

Tamyra Gray

Self / Self - Performer / Self - Guest

Carrie Underwood