The actress, who had roles in Call the Midwife, New Tricks and Casualty, passed away yesterday (September 4) at her home in Brighton, a representative has confirmed.
"It is with huge sadness that we have to report the death of our beloved friend and client Clare Cathcart," a spokesperson said in a statement.
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"Clare was brilliant, fearless and funny; a wonderful actor who we are immensely proud to have represented.
"Her credits are too vast to list in full but, to name a few, she'll be remembered for her work at the Royal Court, the RSC, the National, the Tricycle and Chichester Festival Theatre as well as innumerable appearances on screen.
"Without her razor-sharp wit and glorious laugh the world will seem a darker place. We will miss her enormously."
Cathcart rose to prominence with roles in shows including Holby City, Come Fly with Me and Doctors.
Recently she guest-starred as Mrs Torpy in the first episode of the third series of Call the Midwife, which aired in January this year.
Her co-star Miranda Hart was among a number of actors expressing their sadness at the news.
Reeling from closer to home news of Clare Cathcart. Had the privilege of some serious laughing with her on call the midwife. A ball of joy.
— Miranda Hart (@mermhart) September 4, 2014
So sad to hear that my colleague fr Comedy of Errors Clare Cathcart passed away. She ws bright and very funny. She'll be missed. Bye Claire
— Lenny Henry (@LennyHenry) September 4, 2014
Clare Cathcart :a brilliant actress, comedienne,life affirmer, woman's woman,survivor, mother & friend.The world is a poorer place #RIP
— Tracy Ann Oberman (@TracyAnnO) September 4, 2014
My beautiful friend Clare Cathcart passed away today. Such a shock when someone so full of life dies. She will be so missed by so many. RIP
— Charlie Condou (@Charliecondou) September 4, 2014
Her cause of death has not been confirmed.
