He also voiced several characters in various Big Finish Doctor Who audio stories and spin-offs.
A promotional image of him as General Staal was used to depict Commander Halke in the Doctor Who story The God Complex and Major Stenx on the cover of the New Series Adventures novel The Sontaran Games. Archive imagery of Ryan was also used to depict a Sontaran resident of the trap street in Face the Raven.
- Mindwarp - Lord Kiv
- The Sontaran Stratagem / The Poison Sky - General Staal
- The Pandorica Opens - Commander Stark
Classic Doctors, New Monsters Edit
The Paternoster Gang Edit
Lady Christina Edit
- Internet Movie Database at the