- Pat Kelman - Ultron Postie
- Pat Kelman - Postie
- Charlotte Hudson - Irish Newsreader
- Shola Adewusi - Mrs Denton
- Anna Niland - Mrs Blake
- Jodie Scott - Arnie's Customer
- Joan Linder - Mrs. Poslette
- Marcello Walton - The Pope
- Moya Brady - Avril
- John Guerrasio - Arnie's Customer
- Margaret Towner - Mrs. Chipchase
- Heather Coombs - Mrs Farmsworth
- Sue Elliott-Nichols - Health Store Customer
- Pamela Ruddock - TV Newswoman
- Malcolm Mudie - Policeman
- Hilary Sesta - Mrs. Gardner
- Stewart Wright - Cricketer
- Brett Reylander - Mr. Johnson
- Peadar Lamb - Seamus Sunday
- Tres Hanley - Carol
- Emma Davidson - Zoe
- John Halstead - Tom
- Philip Cumbus - Teenager
- Amy Robbins - Xil
- James Holmes - Rovi
- Sharlene Whyte - Arnie's Customer
- John Rapley - Mr Jenks
- John Oliver - Man from the BBC
- Paul Gregory - Mr Cracknell
- Paul Gregory - Vicar
- Paul Child - Craig
- Simon Wright - Male Customer
- Jeff Mirza - Pilot
- Jonathan Jones - Co-Pilot
- June Bailey - Mrs Alnutt
- Donna Berlin - New Patient
- Natasha Kaplinsky - Self
- Jimmy Gardner - Old George
- Mark Anthony Brighton - Bob
- Jack Sandle - New Body George
- Alex Thorne - Young George
- Audrey Smith - Elderly Woman
- Richard Dixon - Estate Agent
- Jade Clarke - Trolley Assistant
- Dominic Coleman - Kevin Trench
- Gus Brown - Self
- Rosie Fellner - Carole
- Selina Cadell - Dr. Evans
- Laurie Brett - Female Customer
- Bobby Bragg - Customer
- Pauline Whitaker - Sue
- Michael Fish - Self
- Jon Cartwright - Cricket Umpire
- Sarah Crowden - Mrs Clark
- Michael Fenton Stevens - Vicar
- Peter Harlowe - Lord High Arbiter of Abuses of Power
- Elisabeth Dermot Walsh - Charlotte
- Mary Keegan - Mrs Tott
- Dick Bradnum - Perfume Seller
- Paul Mohan - Patient
- Tony Aitken - Mr Lawrence
- Dominique - Self
- Claire Vousden - Officious Woman
- Emma Pierson - Chelsea Williams
- Elspeth Rae - Olivia
- Miranda Bell - Marjorie Wallace
- Sarah Flind - Large Woman
- Lloyd Notice - Jehovah's Witness
- Roger Alborough - Patient Requesting Magazine
- Jeanne Mockford - Mrs Bartlett
- Lochlann O'Mearáin - Non-smoking Patient
- Kerry Godliman - Receptionist
- Max Rhyser - Brad
- Daniel O'Grady - Australian Newsreader
- Jonathan Keeble - Mr. Allison
- Scott Baker - Mr. Blake
- Deddie Davies - Anne Osborne
- Joanne Heywood - Wendy Williams
- Jo-Anne Stockham - Cheryl
- Shivani Ghai - Mothers Group Attendee with Baby
- Jessica Wong - Mothers Group Attendee
- Ray Burdis - Detective Symes
- Paul Bigley - PC Dobbs
- Guido Adorni - Leonardo da Vinci
- Hannah Waddingham - Lula
- Hannah Waddingham - Miranda
- Souad Faress - NHS Inspector
- Laurence Howarth - Angry Patient
- Trevor Cooper - Charles Splink
- Geoffrey Whitehead - Headmaster
- Con O'Neill - Martin
- Lorna Gayle - Ultron TV Technician
- David Summer - AA Patient
- Max Digby - Morning Show Host
- Natasha Joseph - Morning Shop Host
- Peggy Batchelor - Mrs Mrs Raven
- Eddie Connor - Man on Phone
- Perdita Avery - Linda
- Timothy Bateson - Leo
- Ben Willbond - Dexter Paget
- Alan Blyton - TEA TV Presenter
- Sophie Raworth - Self
- Adrian Christopher - Cinema Usher
- Kim Benson - Ticket Seller
- Geoffrey Perkins
Timothy Bateson hace el papel de Leo.
Selina Cadell interpreta a Dr. Evans en la serie.
James Dreyfus interpreta a George Monday / Thermoman en la serie.
Emily Joyce interpreta a Janet Dawkins en la serie.
Philip Whitchurch hace el papel de Tyler.
Lou Hirsch interpreta a Arnie Kawolski en la serie.
Tim Wylton interpreta a Stanley Dawkins en la serie.
Lill Roughley interpreta a Ella Dawkins en la serie.
Hugh Dennis hace el papel de Dr. Piers Crispin.
Geraldine McNulty hace el papel de Mrs. Raven.
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