British actor and voice actor William Morgan Sheppard, who played four different roles on Star Trek and was on Doctor Who, died on January 6, 2019. He was 86 years old.

Sheppard’s Star Trek roles included appearance across several titles in the large series. His first was as Data’s “grandfather” Dr. Ira Graves in The Next Generation episode “The Schizoid Man,” followed by playing Klingon Commander Rura Penthe in Star Trek VI: The Undiscovered Country, then Qatai in the Voyager episode “Bliss,” and finally Vulcan Science Minister in 2009’s Star Trek.

On Doctor Who, Sheppard starred in the season six premiere episode, “The Impossible Astronaut.” He played the older version of the character Canton Everett Delaware III, with the younger version portrayed by his son, Mark Sheppard.

Sheppard was born in 1932 and graduated from Royal Academy Drama of Art in 1958. He worked for 12 years as an associate artist with the Royal Shakespeare Company and appeared in Broadway productions of Marat/Sade and Sherlock Holmes.

His film and TV debut was in a 1961 episode of Theatre Night. Sheppard made many appearances on TV shows and in TV movies throughout the course of his career. Some of his work includes Marked Personal, Churchill’s People, Z Cars, Rebecca, A Family Affair, Sherlock Holmes and Doctor Watson, Shogun, The Flame Trees of Thika, Max Headroom, MacGyver, The Legend of Prince Valiant, SeaQuest 2032, Babylon 5, Gargoyles, Jag, Hellsing, Licensed by Royalty, Gilmore Girls, Dexter, and The Librarians.