- Matt LeBlanc
- Â Matt LeBlanc 41 episodes, 2011-2017
- Stephen Mangan
- Â Sean Lincoln 41 episodes, 2011-2017
- Tamsin Greig
- Â Beverly Lincoln 41 episodes, 2011-2017
- John Pankow
- Â Merc Lapidus 40 episodes, 2011-2017
- Kathleen Rose Perkins
- Â Carol Rance 40 episodes, 2011-2017
- Mircea Monroe
- Â Morning Randolph 39 episodes, 2011-2017
- Joseph May
- Â Andy Button 26 episodes, 2011-2017
- Daisy Haggard
- Â Myra Licht 26 episodes, 2011-2017
- Genevieve O'Reilly
- Â Jamie Lapidus 14 episodes, 2011-2014
- Andrea Savage
- Â Helen Basch 13 episodes, 2015-2017
- Scarlett Yaryan
- Â Wendy 13 episodes, 2012-2015
- Andrea Rosen
- Â Eileen Jaffee 11 episodes, 2014-2017
- Roger Bart
- Â Roger Riskin / ... 11 episodes, 2014-2017
- Sam Palladio
- Â Stoke 10 episodes, 2012-2015
- Fiona Glascott
- Â Diane 10 episodes, 2011-2017
- Sarah Sharman
- Â Network Executive 1 episode, 2011-2017
- Demetri Goritsas
- Â Director 9 episodes, 2011-2012
- Laurie Paul Calvert
- Â Carol's Assistant 9 episodes, 2012-2015
- Chris Diamantopoulos
- Â Castor Sotto 8 episodes, 2014-2015
- Harry McEntire
- Â Jason 8 episodes, 2012-2014
- Jonathan Howard
- Â Assistant Director 8 episodes, 2014-2015
- Oliver Kieran-Jones
- Â Andrew Lesley 8 episodes, 2011-2015
- Michael Brandon
- Â Elliot Salad 8 episodes, 2012-2017
- Jacob Anderson
- Â Kevin 6 episodes, 2012
- David Armand
- Â Maurice / ... 7 episodes, 2012-2015
- Sally Tatum
- Â Lily / ... 7 episodes, 2012-2017
- Bruce Mackinnon
- Â Tim Whittick 7 episodes, 2015-2017
- Trevor White
- Â Assistant Director 5 episodes, 2012
- Sophie Rundle
- Â Labia 5 episodes, 2012-2014
- Bruce Lester-Johnson
- Â Roger 5 episodes, 2011-2012
- John Ross Bowie
- Â Psychiatrist 5 episodes, 2014
- Rosie Sansom
- Â Kelsey 5 episodes, 2017
- Dinesh Sundran
- Â Rafe 5 episodes, 2017
- Callum Adams
- Â Jonathan 5 episodes, 2017
- Sarah Armstrong
- Â Danika 5 episodes, 2017
- Tom Bates
- Â Stage Manager 5 episodes, 2017
- Jessica Chaffin
- Â Nina / ... 4 episodes, 2014-2017
- Martin McDougall
- Â Assistant Director 4 episodes, 2011
- James Purefoy
- Â Rob 4 episodes, 2012
- Rochelle Neil
- Â Jessica 4 episodes, 2017
- Nigel Planer
- Â Sanford Shamiro 3 episodes, 2012-2015
- Geoffrey McGivern
- Â Bob 3 episodes, 2015
- Eros V
- Â 'Pucks!' Boy 3 episodes, 2011
- Caroline Aaron
- Â Linda 3 episodes, 2014-2017
- Lou Hirsch
- Â Wallace 3 episodes, 2011
- Ella Kenion
- Â Beth 3 episodes, 2014-2017
- Lucien Laviscount
- Â Brian 3 episodes, 2014
- Jenna Augen
- Â Amanda 3 episodes, 2017
- Alana Hood
- Â Writer 1 3 episodes, 2017
- Dominic Coleman
- Â Writer 2 3 episodes, 2017
- Peter Hobday
- Â Writer 3 3 episodes, 2017
- Alejandro Postigo
- Â Ernesto 2 episodes, 2011
- Anna-Maria Everett
- Â Florinda 2 episodes, 2011
- Rhashan Stone
- Â Howard 2 episodes, 2011
- Alex Rocco
- Â Dick LeBlanc 2 episodes, 2014-2015
- Rhoda Gemignani
- Â Mrs. LeBlanc 2 episodes, 2015-2017
- Barry Atsma
- Â Arjen Van Der Linden 2 episodes, 2015
- Jake Mitchell
- Â Young PA 2 episodes, 2015
- Katherine Ryan
- Â Merc's Assistant 2 episodes, 2012
- Katherine Jakeways
- Â Castor's Assistant 2 episodes, 2014
- Morgan Gingerich
- Â Michael 2 episodes, 2014
- Ravi Sinha Smith
- Â Aiden 2 episodes, 2014
- Max Curnin
- Â Kenny 2 episodes, 2017
- Rufus Jones
- Â Anthony Powner Smith 2 episodes, 2014-2017
- Damaris Justamante
- Â Journalist #1 / ... 1 episode, 2014
- Paul Leonard
- Â Teliana's Waiter / ... 1 episode, 2012
- Richard Griffiths
- Â Julian Bullard 1 episode, 2011
- David Schwimmer
- Â David Schwimmer 1 episode, 2015
- Jed Aukin
- Â US Customs Official 1 episode, 2015
- Mark Edel-Hunt
- Â AJ 1 episode, 2017
- Luke Kempner
- Â TV Writer 1 episode, 2017
- William Hope
- Â Matt's Agent 1 episode, 2011
- Ben Miller
- Â Ben Miller 1 episode, 2011
- Jane Perry
- Â Charity Woman 1 episode, 2011
- Gerard Monaco
- Â Paparazzo 1 episode, 2011
- Kenneth Collard
- Â SFX Guy 1 episode, 2012
- Freddy John James
- Â Studio Security Guard 1 episode, 2015
- Alden Ray
- Â Security Guard 1 episode, 2017
- Hanae Atkins
- Â Japanese Girl 1 episode, 2015
- Stephen Mitchell
- Â Maitre D' 1 episode, 2017
- Joseph Balderrama
- Â Tour Guide 1 episode, 2011
- Ronan Summers
- Â Hair Guy 1 episode, 2012
- Nancy Lenehan
- Â Sex Therapist 1 episode, 2014
- Humphrey Ker
- Â Writer 1 episode, 2014
- Tom Price
- Â Aaron 1 episode, 2015
- Paul Ham
- Â Director 1 episode, 2015
- Gilbert Gottfried
- Â Gilbert Gottfried 1 episode, 2017
- Rachel Shelley
- Â Kendra 1 episode, 2011
- John Chancer
- Â Editor 1 episode, 2011
- Sharon Wilkins
- Â Nurse #1 1 episode, 2015
- Beth Crosby
- Â Britta 1 episode, 2015
- Jenny Bede
- Â Studio Office Manager 1 episode, 2015
- Tom Vallen
- Â Zach 1 episode, 2017
- William Armstrong
- Â Prop Master 1 episode, 2017
- Rick Kissack
- Â Waiter 1 episode, 2011
- Albie Selznick
- Â Golf Coach 1 episode, 2012
- Wayne Lopez
- Â Journalist 2 1 episode, 2014
- Virginia Montero
- Â Mirtala 1 episode, 2014
- Troy Vincent
- Â Dr Lillian 1 episode, 2015
- Wayne Alon Scott
- Â Tow Truck Operator 1 episode, 2015
- Shauna Shim
- Â Waitress 1 episode, 2017
- Johnnie Fiori
- Â QVT Host 1 episode, 2017
- Marlon Blue
- Â Luc 1 episode, 2017
- Jamie Denbo
- Â Bethany 1 episode, 2012
- Gary Levine
- Â Rabbi 1 episode, 2012
- Tom Lenk
- Â Publicist 1 episode, 2014
- Lauriane Gilliéron
- Â Attractive Woman 1 episode, 2015
- Michael Hyland
- Â Stoke's Realtor 1 episode, 2015
- Adrian Harris
- Â Stage Manager 1 episode, 2015
- Tracy Spiridakos
- Â Dawn 1 episode, 2014
- Stacie Greenwell
- Â Journalist 3 1 episode, 2014
- Fernando Rivera
- Â Joe 1 episode, 2014
- Peter Brooke
- Â Studio Director 1 episode, 2015
- Jackie Mah
- Â Nurse #2 1 episode, 2015
- Helen Russell-Clark
- Â Gifting Suite Woman 1 episode, 2015
- Karen Mann
- Â Mirtala 1 episode, 2015
- Stacy Shane
- Â Vet 1 episode, 2017
- Alex Lewis
- Â Journalist 4 1 episode, 2014
- Sharon Sachs
- Â Berta Nissick 1 episode, 2014
- Suzanne Sena
- Â News Reporter 1 episode, 2014
- J. Omar Castro
- Â Delivery Guy 1 episode, 2014
- Alistair Brammer
- Â Eric 1 episode, 2015
- Richard Durden
- Â Charles Lincoln 1 episode, 2015
- Jack Derges
- Â Energy Drink Vendor 1 episode, 2015
- Mark Weinman
- Â Ollie 1 episode, 2015
- James Michael Tyler
- Â James Michael Tyler 1 episode, 2012
- Tom Bell
- Â Autograph Man 1 episode, 2012
- Merrin Dungey
- Â Tonight Show Producer 1 episode, 2014
- Ben Zelevansky
- Â TV Critic 1 episode, 2014
- Claire Tran
- Â Leather Goods Woman 1 episode, 2015
- Sophie Fletcher
- Â Claire 1 episode, 2015
- P.J. Brennan
- Â Andrew's Assistant 1 episode, 2015
- Amanda Forbes
- Â Opera Singer 1 episode, 2012
- Daniel Adegboyega
- Â Kick Boxer 1 episode, 2014
- Brandon Ford Green
- Â Cop 1 1 episode, 2014
- Michael S. Siegel
- Â Rabbi 1 episode, 2015
- Simon Connolly
- Â Salsa Vendor 1 episode, 2015
- Bekka Bowling
- Â Network Receptionist 1 episode, 2015
- Jay Leno
- Â Jay Leno 1 episode, 2014
- Bruno Amato
- Â Cop 2 1 episode, 2014
- Leslie Moonves
- Â Les Moonves 1 episode, 2014
- Kate Miles
- Â Network Executive 1 episode, 2015
- Tim Bagley
- Â Another Executive 1 episode, 2015
- Ray Callaghan
- Â Ancient Crew Guy 1 episode, 2015
- Jon Glover
- Â Lawyer 1 episode, 2015
- Paola Berta
- Â Rosa 1 episode, 2017
- Christy Meyer
- Â Casting Director 1 episode, 2017
- Edward Lemont
- Â Production Assistant (uncredited) 4 episodes, 2011
- Fatah Ghedi
- Â Kojo (uncredited) 4 episodes, 2017
- Vince Taylor
- Â Maintenance Guy (uncredited) 2 episodes, 2015
- Mason Pettit
- Â Box Announcer (uncredited) 2 episodes, 2017
- Gabriella Ellis
- Â Laughing Executive (uncredited) 1 episode, 2011
- Filippo Delaunay
- Â BAFTA Winner (uncredited) 1 episode, 2011
- Robert Eames
- Â BAFTA Guest (uncredited) 1 episode, 2011
- Tina Simmons
- Â Man of the Year Guest (uncredited) 1 episode, 2012
- James Evans
- Â Tom Selleck Look-a-Like (uncredited) 1 episode, 2012
- Greg Bennett
- Â Man of the Year Guest (uncredited) 1 episode, 2012
- Graham Curry
- Â Man of the Year Guest (uncredited) 1 episode, 2012
- Mehmet Edip
- Â Banquet Waiter (uncredited) 1 episode, 2012
- Tarik Freitekh
- Â The Producer (uncredited) 1 episode, 2012
- Robert Kugler
- Â Lapidus' Personal Body Guard (uncredited) 1 episode, 2012
- Jesse James Sims
- Â Man of the Year Guest / ... (uncredited) 1 episode, 2012
- Mindy Robinson
- Â Movie Star (uncredited) 1 episode, 2014
- Rebecca Olejniczak
- Â Model (uncredited) 1 episode, 2014
- Julia Parker
- Â Sally Kim (uncredited) 1 episode, 2014
- Brent Witt
- Â Partygoer (uncredited) 1 episode, 2014
- Meli Alexander
- Â Producer at Party (uncredited) 1 episode, 2014
- Marc Abbink
- Â Restaurant Patron (uncredited) 1 episode, 2014
- Anthony Newman
- Â Celebrity Diner (uncredited) 1 episode, 2014
- Jason Schuster
- Â Reporter (uncredited) 1 episode, 2014
- Fiona Rene
- Â Network Assistant (uncredited) 1 episode, 2015
- Aaron Groben
- Â Clown (uncredited) 1 episode, 2015
- Alex Mills
- Â The Chef (uncredited) 1 episode, 2015
- Mark Haldor
- Â Pucks Crew (uncredited) 1 episode, 2015
- Chris Cowlin
- Â Audience Member (uncredited) 1 episode, 2015
- Seth Bailey
- Â Sonny Daze, the Hobo Clown (uncredited) 1 episode, 2015
- Hugh Holman
- Â Celebrity (uncredited) 1 episode, 2015
- Chris Brady
- Â Technical Director (uncredited) 1 episode, 2015
- Diane Halling
- Â Lawyer in Bathroom (uncredited) 1 episode, 2017
- Jason Matthewson
- Â Rod (uncredited) 1 episode, 2017
- Ricardo Freitas
- Â Audition Actor (uncredited) 1 episode, 2017
- Kamil Lemie
- Â Waiter (uncredited) 1 episode, 2017
- Stacy Sobieski
- Â Receptionist (uncredited) 1 episode, 2017
- Emiliah Rochford
- Â Diner (uncredited) 1 episode, 2017
- Benjamin Moss
- Â Barman (uncredited) 1 episode, 2017