Derrick Goodwin

Derrick Goodwin (born Derrick John Goodwin 6 July 1935 -3 April 2022 ) directed the Doctor Who television story The Invisible Enemy, giving him the honour of directing K9's debut.

He later married Nell Curran, who appeared in the story as the reception nurse.

He later appeared in the documentary Dreams and Fantasy, where he shared his memories on working on the story.