Kay Clark is a fictional character created and portrayed by Tracey Ullman.

She is the character Ullman has portrayed the longest, spanning over four decades and three television programmes.

There's always one like her in every office who sells sanitary napkins and stamps, with her nice polyester ass waddling across the room.

"[2] Kay, whilst retaining many of the same personality traits, has been reconceptualized for each television programme.

In Tracey Takes On... (1996–1999), Kay is employed as a bank teller in Van Nuys and lives in Panorama City in Los Angeles, California.

In Tracey Ullman's Show (2016–2018), Kay, living in New Malden in London, is portrayed as an old aged pensioner.

Kay wears clothing made from polyester, along with a pen on a string which hangs around her neck.

Kay, a Rhode Island paper distribution company office worker, is the constant victim of her coworkers', and even boss', taunts and pranks.

The cause of Mummy's injuries are revealed in the sketch "Kay Babysits": Once there was a little girl about your age who was told never, never to listen to the radio.

An illness that got progressively worse overly the next thirty years until she was a completely invalid, unable to do a single bloody thing for herself.

Kay is presented as a 42-year-old Californian bank teller (and sometimes branch manager) at Van Nuys Savings and Loan.

Unlike her portrayal in The Tracey Ullman Show, Kay does not face the wrath of her nasty coworkers.

"'I didn't know the damn motorbike would part company with the sidecar, Mildred,' he shouted over his shoulder, as he sped off up Shaftesbury Avenue.

'"[3] In the episode "Tracey Takes On... Death", Kay's father is revealed to have run off with her aunt, Marjorie.

After she takes part in a prison pen-pal program, attorney Sydney Kross (Ullman) convinces her to marry an inmate in hopes of sparing him the death penalty.

Kay follows through with the quickie wedding, but her marriage does not result in a stay of execution from the governor.

Kay's husband is placed in a gas chamber, leaving her, as Ullman refers to her, as "the virgin widow.

For the first time in the character's television history, Mother appears on-screen (played by actress Joan Linder).

Kay is somebody I've done for many years, as you realize, because I did her on the original show in America and Americans used to like her.

While looking for something to keep them warm, she discovers a postcard addressed to her from a man inviting her to the cinema.

Mother has been keeping a variety of correspondents from her for decades: a marriage proposal, acceptance of her application to a university, a job offer, and an invitation from a group of people to join them on holiday.

In episode six, Kay tracks down her cousin Debbie from Australia who is doing their family tree.