John Stahl (born 1953 in Sauchie, Clackmannanshire, Scotland) is a Scottish actor, arguably best known for playing the recurring character of Quinn on the second season of Being Human.
In Game of Thrones he is playing the role of Rickard Karstark, starting in the second season. He replaces Steven Blount, who was announced in the role, but was not identified by name on screen. George R.R. Martin confirmed him in the role on 13 October 2011. He joined the cast as a guest star in the second season.
|Season two credits|
|The North Remembers||The Night Lands||What is Dead May Never Die||Garden of Bones||The Ghost of Harrenhal|
|The Old Gods and the New||A Man Without Honor||The Prince of Winterfell||Blackwater||Valar Morghulis|
|Season three credits|
|Valar Dohaeris||Dark Wings, Dark Words||Walk of Punishment||And Now His Watch is Ended||Kissed by Fire|
|The Climb||The Bear and the Maiden Fair||Second Sons||The Rains of Castamere||Mhysa|