Dan Starkey has played various Sontaran roles in televised Doctor Who, as well as for audio dramas and the Doctor Who video game "The Gunpowder Plot". He has also played other non-Sontaran characters for audio and televised Doctor Who and The Sarah Jane Adventures.

He is best known for playing Strax, an occasional associate of the Doctor's. Besides appearing in episodes, Starkey also appears as Strax in a number of online promotional videos uploaded by the BBC under the title Strax Field Report and has also made public appearances in costume and in character as Strax at venues such as the Doctor Who Experience and the 2013 edition of Doctor Who at the Proms.

TELEVISION ROLES

• Commander Skorr and Lieutenant Skree in "The Sontaran Stratagem / The Poison Sky"
• Commander Jask in "The End of Time"
• Commander Strax in various episodes from "A Good Man Goes to War" onwards
• Plark in "The Man Who Never Was"
• Commander Skarr and another Sontaran in "The Time of the Doctor"
• Ian in "Last Christmas"

AUDIO ROLES

• Cravnet in "Robophobia"
• Lord Zellenger in "Hexagora"
• Historiographer Osin in "The Foe from the Future"
• Sheer Jawn in "Wirrn Isle"
• Kevin Winston and Robomen in "Energy of the Daleks"
• Jaka in "The First Sontarans"
• The Sontarans in "The Five Companions"
• Marshall Stenn and Major Vlaar in "Starlight Robbery"
• Strang and Hutchins in "The King of Sontar"
• Rastel and other Sontarans in "Master of the Daleks"

VIDEO GAME ROLES

• Field Major Kaarsh in GAME: The Gunpowder Plot

WEBCAST ROLES

• Commander Strax in WC: Vastra Investigates: A Christmas Prequel and The Battle of Demon's Run: Two Days Later

OTHER APPEARANCES (NON-CANON)

• Commander Strax in WC: Strax Field Report series.
• Commander Strax in Doctor Who at the Proms 2013
• Commander Strax in the cinema introduction segment of TV: The Day of the Doctor
• Himself (in Sontaran make-up) in The Five(ish) Doctors Reboot and the 2009 cast and crew music video for "I'm Gonna Be (500 Miles)".

Outside of Doctor Who, starting from 2012, Starkey played the hobgoblin Randal Moon in Wizards vs Aliens.