William Morgan Sheppard

William Morgan Sheppard (24 August 1932 -6 January 2019 ) was a British film, television and voice actor. He played the older version of Canton Everett Delaware III in the Doctor Who story The Impossible Astronaut.

Career
Outside Doctor Who, he was best known for his numerous appearances in other science-fiction series, including Star Trek. In 2000, he provided voices for the video game Star Wars: Force Commander and also played the role of Ignatius Cheese in the video game Escape from Monkey Island. In the mid-1980s, Sheppard played Blank Reg in both the original UK production of Max Headroom and its later American remake. He also had a major part as the evil Plutarkian businessman Lawrence Lactavious Limburger in cult 1990s American sci-fi cartoon Biker Mice from Mars and its 2006 sequel series of the same name.

Personal Life
His son, Mark Sheppard, played the younger version of Canton Delaware in The Impossible Astronaut and Day of the Moon.