Host

Ryan Seacrest

Judge

Randy Jackson

Judge

Jennifer Lopez

Self - Judge

Simon Cowell

Judge

Steven Tyler

Contestant

DeAndre Brackensick

Self - Judge

Paula Abdul

Contestant

Adam Brock

Self - Judge

Keith Urban

Contestant

Colton Dixon

Contestant

Creighton Fraker

Self - Judge

Harry Connick Jr.

Self - Judge

Kara DioGuardi

Contestant

Eben Franckewitz

Contestant

Reed Grimm

Self - Judge / Self

Ellen DeGeneres

Contestant

Han Hee-jun

Self - Judge / Self / Self - Mentor

Mariah Carey

Contestant

Jermaine Jones

Self - Judge / Self - Performer

Nicki Minaj

Contestant

Joshua Ledet

Self - Contestant / Self / Self - Auditionee

Phillip Phillips

Contestant

Chase Likens

Self / Self - Guest Performer / Self - Contestant

Kimberley Locke

Contestant

Aaron Marcellus

Self - Host

Brian Dunkleman

Self / Self - Contestant

Katie Stevens

Contestant

Jeremy Rosado

Self - Contestant / Self

Todrick Hall

Contestant

Baylie Brown

Self / Self - Contestant / Self - Musical Guest

Jennifer Hudson

Contestant

Hollie Cavanagh

Contestant

Hallie Day

Self - Contestant / Self

Peter Frank

Self / Self - Contestant

Chris Daughtry

Contestant

Jennifer Hirsh

Contestant

Haley Johnsen

Self / Self - Contestant

Jon Peter Lewis

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

Clay Aiken

Contestant

Skylar Laine

Self - Contestant / Self - Guest

Tamyra Gray

Contestant

Shannon Magrane

Self / Self - Performer / Self - Guest

Carrie Underwood

Contestant

Jessica Sanchez

Contestant

Chelsea Sorrell

Contestant

Elise Testone

Contestant

Erika Van Pelt

Contestant

Brielle Von Hugel