Jim Egan, portrayed by James Garner (2003–2005), is Cates father.

Why did the dad die in 8 Simple Rules?

Paul Hennessy (Portrayed by John Ritter from 2002-2003) is Cates husband and father of Bridget, Kerry and Rory. Paul collapsed and died while at the store while buying milk. This was probably because of an aortic dissection (and because of the real-life death of John Ritter).