Neil Fingleton, tallest man in the United Kingdom and the actor famous for playing Mag the Mighty in "Game Of Thrones," has died at the age of 36. The reported cause of death is heart failure.

Prior to his work as an actor, Fingleton, who was recognized in 2007 as the tallest man in the UK by the Guinness World Records, played basketball for the University of North Carolina and the College of the Holy Cross, before briefly playing in the ABA and various European leagues.

Aside from "Game Of Thrones," Fingleton acted in films including 417 Ronin and X-Men: First Class, and the television series Doctor Who.