Inigo Jackson (19 July 1933-25 August 2001) played Zentos in the Doctor Who television story The Ark.
Jackson, who was born Anthony Michael Jackson, debuted in the 1964 film Becket, after which he appeared on television series' such as Gideon's Way, The Human Jungle, The Saint, Z-Cars, Man in a Suitcase, Department S and Jason King. His film appearances included The Brigand of Kandahar, Doctor Zhivago and Twins of Evil. However, he is best known for playing Athelstane in eight episodes of the 1970 television version of Ivanhoe.