David Collings

David Collings (born 4 June 1940) appeared in several Doctor Who stories: as Vorus in Revenge of the Cybermen, Poul in The Robots of Death, and Mawdryn in Mawdryn Undead.

He also played an alternative incarnation of the Doctor in the Big Finish Productions audioplay Full Fathom Five and would return to his role of Poul, now Paulus, in Magic Bullet Productions' series of Kaldor City audios.

Outside of Doctor Who, he appeared in eight episodes of the television series Sapphire & Steel as the character Silver, a role he reprised in the Big Finish Productions Sapphire & Steel audio series. He also appeared in the final episode of Blake's 7 as Deva.

Doctor Who

 * Revenge of the Cybermen
 * The Robots of Death
 * Mawdryn Undead

Doctor Who Unbound

 * Full Fathom Five

Jago and Litefoot

 * Litefoot and Sanders
 * The Necropolis Express
 * The Theatre of Dreams
 * The Ruthven Inheritance

Kaldor City

 * Hidden Persuaders
 * Taren Capel
 * Checkmate