Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
Derek Halligan is a Northern Irish actor. He has many stage credits, and is best-known on television for a recurring role in Hollyoaks. He played the supervillain Dr. Nightshade in Tonight We Fly.
In Game of Thrones Halligan was originally announced as playing the role of Ser Alliser Thorne. He was confirmed in the role on 16 July 2010. On 18 August 2010 it was announced that Halligan had left the project for unspecified reasons. He was replaced by Owen Teale.