Gaius Cassius Longinus
Guy Henry (born 17 October 1960) is an English actor whose roles include Henrik Hanssen in "Holby City", Pius Thicknesse in "Harry Potter and the Deathly Hallows – Part 1" and "Part 2", Gaius Cassius Longinus in "Rome" and Grand Moff Tarkin in "Rogue One".