Main •
Mae Martin as a fictionalised version of themself •
Charlotte Ritchie as Georgina "George" Lawson, Mae's girlfriend and a secondary school English teacher •
Lisa Kudrow as Linda Martin, Mae's mother
Recurring •
Phil Burgers as Phil, George's flatmate •
Adrian Lukis as Malcolm Martin, Mae's father •
Pippa Haywood as Felicity Lawson, George's mother •
Ophelia Lovibond (season 1) and
Stephanie Leonidas (season 2) as Binky, George's best friend • Tom Durant Pritchard as Hugh, Binky's husband • Al Roberts as Jared, an unwelcome love interest of George • Tobi Bamtefa as Nick, MC of the Gag Bin comedy club • Jack Barry as Jack, a fellow comedian and Gag Bin regular •
Sophie Thompson as Maggie, Mae's
Narcotics Anonymous (NA) self-declared sponsor (season 1) •
Ritu Arya as Lava (who goes by Laura), Maggie's daughter (season 1) •
Ramon Tikaram as David, NA leader (season 1) • Tom Andrews as Kevin, NA member (season 1) •
Jordan Stephens as Elliott, George's colleague (season 2) •
John Ross Bowie as Scott, Mae's former housemate (season 2) •
Anthony Head as George Lawson, George's father (season 2) •
Steen Raskopoulos as Pete Lewis (season 1 and 2), a Gag Bin comedian ==Episodes==