Nigel Lythgoe
Nigel Lythgoe
 Himself - Judge / ... 244 episodes, 2005-2017
Cat Deeley
Cat Deeley
 Herself - Hostess / ... 237 episodes, 2006-2017
Mark Thompson
Mark Thompson
 Announcer 236 episodes, 2005-2015
Mary Murphy
Mary Murphy
 Herself - Judge / ... 197 episodes, 2005-2017