Steve Nallon (born 8 November 1960) is a British actor, writer, voice artist and impressionist. Nallon began his career as a stand-up performer on the northern club circuit in the 1970s. He is known for his work as a voice artist on the satirical puppet show Spitting Image and for impersonating Margaret Thatcher on television throughout her time as Prime Minister of the UK (1979–1990). In his career Steve Nallon has performed a number of roles and characters as an actor and as a voice artist in theatre, film, television and radio.