Self - Host

Ryan Seacrest

Self - Judge

Randy Jackson

Self - Judge

Paula Abdul

Self - Judge

Simon Cowell

Contestant

David Archuleta

Contestant

Colton Berry

Self - Judge / Self - Performer

Jennifer Lopez

Self - Judge

Keith Urban

Contestant

Joanne Borgella

Contestant

Robbie Carrico

Self - Judge

Harry Connick Jr.

Contestant

Jason Castro

Self - Judge

Kara DioGuardi

Contestant

David Cook

Self - Judge

Steven Tyler

Self - Judge / Self

Ellen DeGeneres

Contestant

Kristy Lee Cook

Self - Judge / Self / Self - Mentor

Mariah Carey

Contestant

Amy Davis

Contestant

Asia'h Epperson

Self - Judge / Self - Performer

Nicki Minaj

Contestant

Chikezie Eze

Self - Contestant / Self / Self - Auditionee

Phillip Phillips

Self / Self - Guest Performer / Self - Contestant

Kimberley Locke

Contestant

Garrett Haley

Self - Host

Brian Dunkleman

Contestant

David Hernandez

Contestant

Michael Johns

Self / Self - Contestant

Katie Stevens

Contestant

Alexandréa Lushington

Self - Contestant / Self

Todrick Hall

Self / Self - Contestant / Self - Musical Guest

Jennifer Hudson

Contestant

Kady Malloy

Contestant

Ramiele Malubay

Self - Contestant / Self

Peter Frank

Self / Self - Contestant

Chris Daughtry

Contestant

Luke Menard

Contestant

Syesha Mercado

Self / Self - Contestant

Jon Peter Lewis

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

Clay Aiken

Contestant

Danny Noriega

Self - Contestant / Self - Guest

Tamyra Gray

Contestant

Amanda Overmyer

Self / Self - Performer / Self - Guest

Carrie Underwood

Contestant

Carly Smithson

Contestant

Alaina Whitaker

Contestant

Brooke White

Contestant

Jason Yeager