Philippe Tomás "P. T." Bivott is an American-born boy from the Henderson's Boys book series by Robert Muchamore. In the events of Eagle Day, he was fifteen years old. He first appears at the end of The Escape. Bivott emigrated to France after stealing a lot of money. It is also revealed in Maximum Security that Bivott became CHERUB's gym master. There is a plaque in the oldest of CHERUB's gyms saying: "Any boy bringing in mud or dirt on his plimsolls will be thrashed. P.T. Bivott (Sports Master)"