Ciarán Hinds as Mance Rayder - Before he played the leader of the Free Folk, Ciarán Hinds had starred in many big-name films including 2005’s Munich, There Will Be Blood in 2007, and he even did some vocals for 2013’s animated juggernaut Frozen. Most notably, however, Hinds played Albus Dumbledore’s estranged brother, Aberforth, in Harry Potter and the Deathly Hallows: Part 2. (People always forget Aberforth, indeed.)