David Collings is an English actor. He has played many different roles on various television programmes, including the leading dramatic role in Fyodor Dostoyevsky's Crime and Punishment in 1964.
Collings has played historical characters such as Percy Grainger in Ken Russell's Song of Summer, John Ruskin in The Love School, a BBC series about the Pre-Raphaelites, and Sir Anthony Babington in Elizabeth R. In 1975 he portrayed William Wilberforce in the BBC TV mini-series The Fight Against Slavery.
He is also known for his roles in the long-running British science fiction television series Doctor Who including Vorus in Revenge of the Cybermen, Mawdryn in the serial Mawdryn Undead and Poul in The Robots of Death. He has also played an alternate Doctor in one of the audio plays by Big Finish Productions in the Doctor Who Unbound series, Full Fathom Five.
His other notable television science fiction appearances were as Deva in the final episode of Blake's 7 and as the character of 'Silver' in several of the Sapphire and Steel adventures.