- Howard Read
- Â Big Howard 39 episodes, 2009-2011
- Chris Chantler
- Â Delivery Man / ... 8 episodes, 2009-2011
- Lucy Porter
- Â Tall Susan / ... 2 episodes, 2009-2010
- Tim Brooke-Taylor
- Â High Court Judge / ... 2 episodes, 2010-2011
- Gemma Arrowsmith
- Â Lady Gaga / ... 2 episodes, 2010-2011
- Kirsten O'Brien
- Â Self 2 episodes, 2009
- Helen Lederer
- Â Big Howard's Mum 2 episodes, 2010
- Chris Cox
- Â Self - Mentalist 1 episode, 2011
- Jem Stansfield
- Â Self 1 episode, 2010
- Jeff Innocent
- Â Cockney Babysitter 1 episode, 2011
- Sy Thomas
- Â Policeman 1 episode, 2010
- Justin Edwards
- Â Unlucky Les 1 episode, 2009
- Ishia Bennison
- Â Very Irritating Neighbour 1 episode, 2009
- Darren Rapier
- Â Scientist 1 episode, 2009
- Miles Gallant
- Â Uncle Roy 1 episode, 2009
- David Penn
- Â Magician 1 episode, 2009
- David Schneider
- Â Alan Monster 1 episode, 2010
- Marek Larwood
- Â Undertaker 1 episode, 2010
- Barney Harwood
- Â DCI Harwood 1 episode, 2010
- Isabel Fay
- Â Johnson 1 episode, 2010
- Jarred Christmas
- Â John Barbara 1 episode, 2010
- Siân Lloyd
- Â Self 1 episode, 2010
- Andre Vincent
- Â Father Christmas 1 episode, 2010
- Ben Bailey Smith
- Â Plithy Nondeploom 1 episode, 2011
- Daniel Hill
- Â Todd Otterback 1 episode, 2011
- Rusty Goffe
- Â H9 1 episode, 2011
- Thomas Nelstrop
- Â Fake Big Howard 1 episode, 2011
- Richard Ashton
- Â Gordon the Giant 1 episode, 2011
- Ben Moor
- Â Adrian 1 episode, 2011
- Marilyn Cutts
- Â Beryl 1 episode, 2011
- Gail Kemp
- Â Lynne 1 episode, 2011
- Ian Kirkby
- Â Dr. Boom House 1 episode, 2011
- Rhona Croker
- Â Penelope 1 episode, 2011
- Michelle Morris
- Â Delivery Woman 1 episode, 2011
- Trevor Neal
- Â David 1 episode, 2011
- Natasha Hill
- Â Mermaid 1 episode, 2011
