He lives at Handcross Manor with his brother. Phillip didn't understand why Poirot had to reopen the case of Amyas' murder, since he believed the killer was his wife Caroline.
In the ITV Five Little Pigs Agatha Christie's Poirot episode, he was portrayed by Toby Stephens. In the original novel, Phillip showed affections for Caroline Crale. In Agatha Christie's Poirot, he actually shows affections towards Amyas.