Question: Odin's People was an Irish folk trio active in the 1960s, made up of Larry Johns, and the twins Elaine and Derek Thompson, a Northern Irish actor, most notable for playing Charlie Fairhead in which long-running BBC television medical drama series?
Sentence (from "Derek Thompson (actor)"): Derek Thompson (born 4 April 1948) is a Northern Irish actor, most notable for playing Charlie Fairhead in the long-running BBC television medical drama series "Casualty".
Relevant evidence: Yes