Idol

• 
  Simon Fuller
  Self
• 
  Ryan Seacrest
  Self
• 
  Mark Thompson
  Announcer
• 
  Randy Jackson
  Self
• 
  Simon Cowell
  Self
• 
  Paula Abdul
  Self
• 
  Jennifer Lopez
  Self
• 
  Katy Perry
  Self
• 
  Lionel Richie
  Self - Judge
• 
  Luke Bryan
  Self
• 
  Keith Urban
  Self
• 
  Kara DioGuardi
  Self - Judge
• 
  Steven Tyler
  Self / Leadsinger
• 
  Harry Connick Jr.
  Self
• 
  Jimmy Iovine
  Self
• 
  Ruben Studdard
  Self
• 
  Carrie Underwood
  Self - Host
• 
  Clay Aiken
  Self
• 
  David Cook
  Self (archive footage)
• 
  Fantasia Barrino
  Self
• 
  Jordin Sparks Thomas
  Self - Performer
• 
  Mariah Carey
  Self
• 
  Ellen DeGeneres
  Self
• 
  Nicki Minaj
  Self
• 
  Taylor Hicks
  Self
• 
  Katharine McPhee
  Self
• 
  Phillip Phillips
  Self
• 
  Lee DeWyze
  Self
• 
  Adam Lambert
  Self - Present Queen Singer
• 
  Elliott Yamin
  Self

• Bruce Gowers
• Russell Norman
• Phil Heyes
• Ken Warwick
• Gregg Gelfand
• Louis J. Horvitz
• John Pritchett
• Bill DeRonde
• Nigel Lythgoe
• Ryan Goble
• Chris 'Stotty' Stott
• Shane Ryan Valdez
• Sam Wrench
• Jayson Carvalho
• Shane C. Drake
• Ben Thursby
• Brian Gadinsky
• Andrew Scheer
• Paul Bozymowski
• Paul Dugdale
• Carrie Havel

• Simon Fuller
  ...
  (creator)
• J. Chris Newberg
  ...
  (writer)