British actor William Morgan Sheppard has died at the age of 86.

The star of Star Trek, Dr Who and Mad Men died on Sunday January 6 in Los Angeles, California.

He leaves behind an actor son Mark Sheppard, with who he starred in several productions, including the TV series NCIS and Doctor Who's The Impossible Astronaut, where they played different aged versions of the same character.

William was born in London in 1932 and graduated from RADA in 1958.

(Image: Rex)

He enjoyed 12 years as associate artist with the Royal Shakespeare Company and appeared in Broadway productions of Marat/Sade and Sherlock Holmes.

His film career began in the 1960s with Strongroom, Tell Me Lies and The Roses Of Eyam, before progressing to Hawk The Slayer, The Elephant Man and The Sea Wolves in the 1980s.

(Image: Rex)

William also appeared in Wild At Heart, Star Trek VI: The Undiscovered Country and 2006's The Prestige, where he played Merrit.

His last film role was as Wil in 2016's Last Man Club, which followed an uncredited appearance in 2009's Star Trek and 2008's Over Her Dead Body.

William is survived by his wife and children.

