Born as Catherine Smith, Russell's father was the actor
Nicholas Smith, best known for playing Mr Rumbold in the
BBC sitcom
Are You Being Served. Her mother, Mary Smith, was a social worker. She is married to film producer
Richard Holmes whose films include
Waking Ned,
The Ritual, ''
God's Own Country and Eden Lake''. They have two children: Sam Russell Holmes, a BBC Radio 4 comedy producer and improv comedian who co-founded the improvisational troupe Shoot from the Hip, and Poppy Holmes, a singer/songwriter. She trained at the
Central School of Speech and Drama from 1983 to 1986 under George Hall. ==Theatre==