David Hattersley Warner (29 July 1941 – 24 July 2022) was an English actor who worked in film, television and theatre. Warner's lanky, often haggard appearance lent itself to a variety of villainous characters as well as more sympathetic roles across stage and screen. He received accolades such as a Primetime Emmy Award and nominations for a BAFTA Award and Screen Actors Guild Award.
Warner trained at the Royal Academy of Dramatic Art before joining the Royal Shakespeare Company (RSC) where he made his stage debut in 1962 where he played Henry VI in The Wars of the Roses cycle at the West End's Aldwych Theatre in 1964. The RSC then cast him as Prince Hamlet in Peter Hall's 1965 production of Hamlet. He made his Broadway debut in the 2001 revival of Major Barbara.
He gained prominence portraying the leading role in the film Morgan: A Suitable Case for Treatment (Karel Reisz, 1966), for which he was nominated for the BAFTA Award for Best Actor in a Leading Role. Other notable roles include in The Omen (1976), Time After Time (1979), Time Bandits (1981), The French Lieutenant's Woman (1981), Tron (1982), A Christmas Carol (1984), Titanic (1997), Scream 2 (1997), Ladies in Lavender (2002), and Mary Poppins Returns (2018). He's also known for his roles in the films Star Trek V: The Final Frontier (1989), and Star Trek VI: The Undiscovered Country (1991). As a voice actor, he's best known for providing the voice of Ra's al Ghul in the DC Animated Universe, and The Lobe in Freakazoid.
Also known for his television roles, he received two Primetime Emmy Award for Outstanding Supporting Actor in a Miniseries or TV Movie nominations for his roles as Reinhard Heydrich in the CBS miniseries Holocaust (1978), and Pomponius Falco in the ABC miniseries Masada (1981), winning for the latter.