Phillipe was a member of the Mars Resistance and a former lover of Tessa Holloran aka: Number One.[1]

In May 2261, Phillipe, planted a bomb at the Red Planet Hotel that took out a Earth security patrol along with ten innocent civilians. When confronted by Number One, furious that Phillipe had initiated an attack without authorisation, Phillipe defended his actions by claiming he'd check with Donovan who was Earthside. Number One nevertheless made it very clear that nobody in Mars Resistance blows anything up without checking with her first, no matter what Donovan says.