Ellen Thomas
From Tardis Wiki, the free Doctor Who reference
Ellen Thomas played a Clockwork Droid in the Doctor Who television story The Girl in the Fireplace, and later Carmen in the Doctor Who story Planet of the Dead.
Thomas also played a Clockwork Droid live at Doctor Who: A Celebration in 2006, credited as "Elen Thomas".
She is best known for her role as the principal in the teen series Coming of Age and for her role as Claudette Hubbard in EastEnders.