Philip is a little diesel boxcab engine with a big personality. Philip is a comic character and a bit of a clown. He is very eager and full of enthusiasm and he has an innocent, but very overblown sense of his own capabilities. Philip can be very funny, but some of the bigger engines have very little patience for the little boxcab. Philip is strong and can pull lots of trucks, but not that many trucks compared to the really big engines. He is fast and likes to hurry about, but he is clearly not as fast as most of the other engines. But Philip's confidence is as big if not bigger than anyone's and he is always willing to try and definitely believes in himself. His actions and attitude soon won him many new friends on Sodor, especially Thomas and Percy, but Gordon and James find his bragging a little hard to accept.
- Philip is based on the Pennsylvania Railroad's diesel-electric Class A6 "boxcab" switcher with an added back door and a circular back.
- Close Shave For Duck (cameo)