Joe Rowntree
饰：Brainiac Joe
Tom Pringle
饰：Dr. Bunhead
Neil DuCran
饰：Brainiac Neil
Moira Kan
饰：Brainiac Moira
Ed Arriens
饰：2 Brains
Richard Greenwood
饰：Brainiac Richard
John P. Kilcoyne
饰：Himself
Karen Naiker
饰：Brainiac Karen
瑞秋·格兰特
Rachel Grant
饰：Professor Myang Li
Jon Tickle
Jon Tickle
饰：Self,43 episodes, 2003-2008,
Stefan D'Bart
Stefan D'Bart
饰：Dolly Boy,28 episodes, 2005-2008,
Charlotte Hudson
饰：Self,29 episodes, 2004-2007,
Peter Dickson
Peter Dickson
饰：Self,23 episodes, 2005-2008, / ...
Brett Reylander
饰：Brainiac,7 episodes, 2003-2007, / ...
Monica Irimia
饰：Self,2 episodes, 2003-2004,
Neil Hamilton
饰：Self,2 episodes, 2004-2006,
帕特里克·莫夫
Patrick Mower
饰：Self,1 episode, 2003,
Tony Hadley
饰：Self,1 episode, 2003,
Penny Smith
饰：Self,1 episode, 2003,
艾伦·戴维斯
Alan Davies
饰：Self,1 episode, 2004,
Lorraine Kelly
Lorraine Kelly
饰：Self,1 episode, 2004,
蒂娜·奥布蕾恩
Tina O'Brien
饰：Self,1 episode, 2004,
Phillip Schofield
饰：Self,1 episode, 2004,
Paul Ross
饰：Self,1 episode, 2004,
John Fashanu
饰：Self,1 episode, 2004,
Rick Parfitt
饰：Self,1 episode, 2004,
Frankie Dettori
Frankie Dettori
饰：Self,1 episode, 2004,
梅琳达·梅森吉
Melinda Messenger
饰：Self,1 episode, 2005,
Wendi Peters
饰：Self,1 episode, 2005,
Joe Pasquale
饰：Self,1 episode, 2005,
Sheila Ferguson
Sheila Ferguson
饰：Self,1 episode, 2005,
Linda Barker
饰：Self,1 episode, 2005,
Jeff Brazier
Jeff Brazier
饰：Self,1 episode, 2005,
Rowetta Satchell
饰：Self,1 episode, 2005,
Andy Fordham
Andy Fordham
饰：Self,1 episode, 2005,
Ian McCaskill
饰：Self,1 episode, 2005,
纳尔夫·李特
Ralf Little
饰：Self,1 episode, 2006,
Jeremy Spake
Jeremy Spake
饰：Self,1 episode, 2006,
德里克·艾柯瑞
Derek Acorah
饰：Self,1 episode, 2006,
奥利佛·史基特
Oliver Skeete
饰：Self,1 episode, 2006,
Paul Burrell
Paul Burrell
饰：Self,1 episode, 2006,
John McCririck
John McCririck
饰：Self,1 episode, 2007,
Elise Harris
饰：Orienteer,1 episode, 2007,
保罗·丹尼尔斯
Paul Daniels
饰：Self (segment "Stars in Their Caravans"),1 episode, 2008,
Frank Bruno
Frank Bruno
饰：Self (segment "Stars in Their Caravans"),1 episode, 2008,
理查德·哈蒙德
Richard Hammond
饰：Self - Presenter,37 episodes, 2003-2006,
维克·里弗斯
Vic Reeves
饰：Self - Presenter,13 episodes, 2007-2008, / ...
Michelle Thorne
饰：Brainiac Babe Doris,9 episodes, 2004,
安吉尔·龙
Angel Long
饰：Brainiac Babe Beryl,8 episodes, 2004,
Bobby George
Bobby George
饰：Self,7 episodes, 2006,
泰拉·祖奇
Thaila Zucchi
饰：Self (segment "How Hard is Your Thing?"),4 episodes, 2008, / ...
Gabriella Irimia
饰：Self,2 episodes, 2003-2004,
Kate Lawler
Kate Lawler
饰：Self,2 episodes, 2004-2006,
黛比·麦基
Debbie McGee
饰：Self,2 episodes, 2006-2008, / ...
Eamonn Holmes
饰：Self,1 episode, 2003,
Dave Courtney
饰：Self,1 episode, 2003,
Nathan Lewis
Nathan Lewis
饰：Self,1 episode, 2003,
妮基·桑德逊
Nikki Sanderson
饰：Self,1 episode, 2004,
露西-乔·哈德森
Lucy-Jo Hudson
饰：Self,1 episode, 2004,
Linsey Dawn McKenzie
饰：Self,1 episode, 2004,
Fern Britton
饰：Self,1 episode, 2004,
Francis Rossi
饰：Self,1 episode, 2004,
Annabel Croft
Annabel Croft
饰：Self,1 episode, 2004,
Andrew Bown
饰：Self,1 episode, 2004,
Matt Lettley
饰：Self,1 episode, 2004,
Paul O'Grady
Paul O'Grady
饰：Self,1 episode, 2005,
Louis Walsh
饰：Self,1 episode, 2005,
Andrea McLean
饰：Self,1 episode, 2005,
Carol Smillie
饰：Self,1 episode, 2005,
Jennie Bond
饰：Self,1 episode, 2005,
Michelle Heaton
饰：Self,1 episode, 2005,
大卫·希曼
David Seaman
饰：Self,1 episode, 2005,
Neil Ruddock
Neil Ruddock
饰：Self,1 episode, 2005,
Kenzie
Kenzie
饰：Self,1 episode, 2005,
艾伦·卡尔
Alan Carr
饰：Self,1 episode, 2006,
Jo Whiley
Jo Whiley
饰：Self,1 episode, 2006,
朱迪·玛什
Jodie Marsh
饰：Self,1 episode, 2006,
Phil Tufnell
Phil Tufnell
饰：Self,1 episode, 2006,
Carol Thatcher
Carol Thatcher
饰：Self,1 episode, 2006,
Eric Knowles
Eric Knowles
饰：Self,1 episode, 2007,
盖尔·波特
Gail Porter
饰：Self (segment "Stars in Their Caravans"),1 episode, 2008,
Jayne Middlemiss
Jayne Middlemiss
饰：Self (segment "Stars in Their Caravans"),1 episode, 2008,