Is a graduate of the Central School of Speech and Drama.
She spent a year with the Royal Shakespeare Company before she turned to stand-up comedy. Has also performed at the National Theatre.
Has a daughter Erin Johanna, born in January 2003, with her partner Twig Clark. Catherine became pregnant before filming "Wild West" (2002) and in the first series is very clearly showing under the baggy cardigans and hippy clothes she wears to play Angela.
Raised by her mother, Josephine. She has had no contact with her father at all. Josephine had left him before Catherine was born.
Her famous fans include Dawn French, Paul O'Grady, Ricky Gervais and Peter Kay.
Catherine grew up in Bloomsbury's iconic Brunswick Centre.
Former member of the National Youth Theatre.
In early July 2007, it was announced that she would be the new companion in "Doctor Who" (2005), reprising her role as Donna Noble from the 2006 Christmas episode. She will join David Tennant (the Doctor) and Freema Agyeman, the previous companion, halfway through the fourth series. Three years Tennant's senior, she is the first companion older than the actor playing the Doctor she accompanies.
Acted as patron of the 2007 Young Writers' Festival at the Royal Court Theatre in London.
On accepting her new position as the Doctor Who companion: I am delighted to be returning to Doctor Who. I had a blast last Christmas and look forward to traveling again through time and space with that nice man from Gallifrey.
If in five years' time the only thing that I've done that is remembered is a teenager saying, 'Am I bovvered?' then I'd worry.
If you want more people to come to the theatre, don't put the prices at £50. You have to make theatre inclusive, and at the moment the prices are exclusive. Putting TV stars in plays just to get people in is wrong. You have to have the right people in the right parts. Stunt casting and being gimmicky does the theatre a great disservice. You have to lure people by getting them excited about a theatrical experience.
(July 2007) About to begin six months of filming "Doctor Who" (2005) in Cardiff.
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