In 1995, Villiers co-founded 2020 Casting, Ltd., one of the largest film background (extras) agencies in the country. Company credits include: Gladiator, Bridget Jones's Diary, Shakespeare in Love, Star Wars, United 93. He appeared in two episodes of Midsomer Murders ("The Killings at Badger's Drift" and "Death's Shadow"). In 2007, he guest-starred in the Doctor Who audio drama Absolution (having previously appeared in the TV two-part serial The King's Demons, back in 1983). In 2009 he was seen in the five-part drama series Collision for ITV. In 2013 he appeared in the Father Brown episode "The Blue Cross" as Justin De Vey. He appeared in By Any Means. In 2014, Villiers returned to Doctor Who when he guest starred as Professor Moorhouse in the story Mummy on the Orient Express.