Game Of Thrones: 9 Biggest Over-Actors

8. Roger Ashton-Griffiths - Mace Tyrell

Mace Tyrell somehow managed to raise a noble knight son and a political darling daughter, all while fighting battles and being raised himself by Olenna Tyrell, the proclaimed Queen of Thorns. So how did he turn into such a wandering, pompous fool? Roger Ashton-Griffiths plays up to his brief perfectly, and then some on top. Every line he speaks is complimented with a puff of the chest, a lift of the head, and snobbish courtesies galore. Lord Brown Nose is currently roaming the streets of Braavos thinking he's on an important errand when in reality, the counsel just wanted a bit of peace from his ramblings.