Ptolemy Slocum is an American actor. In 2005, he made his Hollywood debut in the film Hitch. He next had his first television role in 2 episodes of Wonder Showzen. He later had appearances in The Wire and Fringe. In the 2010s, he had performances in the films Would You Rather and Detour. Around this period, he also had recurring roles on television, such as playing the part of Hugo in HBO’s Looking and Geoff in Your Pretty Face Is Going to Hell. As of 2016, he plays the recurring character of Sylvester in the HBO series Westworld. Recently, he played Raymond Doyle in Amazon Prime Video’s The Man in the High Castle.