From Wikipedia, the free encyclopedia. Graham McTavish (born 1961) is a Scottish television actor. He has played the character Warden Ackerman in Red Dwarf in five episodes of series 8.

Graham McTavish (born 1961) is a Scottish television actor. He has played the character Warden Ackerman in Red Dwarf in five episodes of series 8. McTavish has also had many supporting roles in ...