Question: Emilia Rose Elizabeth Fox, is an English actress, known for her role as Dr. Nikki Alexander on BBC crime drama "Silent Witness", having joined the cast in 2004 following the departure of which Northern Irish actress, well known for her television roles, including Heather Black in the Channel 4 soap opera "Brookside"?
Sentence (from "Emilia Fox"): She also appeared as Morgause in the BBC’s "Merlin" beginning in the programme's second series.
Relevant evidence: No