John Ritter Paul Hennessy Actor Katey Sagal Cate Hennessy Actor Kaley Cuoco Bridget Hennessy Actor Amy Davidson Kerry Hennessy Actor Martin Spanjers Rory Hennessy Actor Mo Gaffney Guest Star Kelsey Batelaan Guest Star Heather McLaughlin Guest Star Rachel Bilson Guest Star Tom Shadyac Executive Producer Flody Suarez Executive Producer Michael Bostick Executive Producer Tracy Gamble Executive Producer Amy Engelberg Writer Wendy Engelberg Writer Terry Hughes Director