Kacey Ainsworth (born 19 October 1968) is an English actress, known for her roles as Little Mo Mitchell in the BBC soap opera EastEnders and Cathy Keating in the ITV drama series Grantchester.

KNOWN FOR

Midsomer Murders
2011
EastEnders
2000
The One Show
2025
The Bill
1996
Grantchester
2014
Peak Practice
1995
Richard & Judy
2001
A Touch of Frost
1996
An Audience with...
2001
V Graham Norton
2002
Friday Night with Jonathan Ross
2002
The Worst Witch
2017

FILMOGRAPHY

All
Movies
TV
Acting
40
2026
Village Idiot
as Janet · unreleased
2025
Robson Green's Weekend Escapes
2025
The One Show
as Self
2024
Whitstable Pearl
as Cassie
2021
The Mallorca Files
as Linda Ball
2019
Gold Star
as Susanne
2019
Lynn + Lucy
as Caroline
2019
Odilo Fabian or (the Possibility of Impossible Dreams)
as Mum
2018
We the Kings
as Susan
2018
The Best of EastEnders
as Little Mo Slater (archive footage)
2018
CUR:FEW
as Miss Crawley
2017
Black Eyed Susan
as Friend 1
2017
The Worst Witch
as Miss Gullet
2016
Agatha Raisin
as Francie Juddle
2014
Grantchester
as Cathy Keating
2011
Tracy Beaker Returns
as Xanthe
2011
Midsomer Murders
as Nikki Rowntree
2011
M.I. High
as Margaret Fontana
2010
Rock & Chips
2010
Rock & Chips
as Edna
2007
Hotel Babylon
as Maria Henson
2007
Holby Blue
as Inspector Jenny Black
2006
The Children's Party at the Palace
as Peter Pan (Peter Pan)
2003
Eastenders: The Slaters In Detention
as Little Mo Mitchell
2002
Friday Night with Jonathan Ross
as Self
2002
V Graham Norton
as Self
2001
Chica de Río
as Sales Assistant
2001
An Audience with Des O'Connor
as Self - Audience Member (uncredited)
2001
An Audience with...
as Self
2001
Richard & Judy
as Self
2000
Happy Birthday Shakespeare
as Rita
2000
EastEnders
as Little Mo Mitchell
1999
Topsy-Turvy
as Miss Fitzherbert
1998
Touch and Go
as Val
1997
The Bill
as Paula Sheriton
1997
Cone Zone
as Loretta
1996
The Moonstone
as Drusilla Clack
1996
A Touch of Frost
as Carole Nash
1996
The Bill
as Gail Painter
1995
Peak Practice
as Julia