"Pater Familias", or "Pater Families" is the third season finale of Ghost Whisperer, it originally aired on May 16, 2008 on CBS in United States. All main cast appears in the final episode of season three. Plot A series of bodily possessions reveals the truth behind Melinda's family, including why her father vanished and why her mom kept the truth a secret. Acting Main Cast Jennifer Love Hewitt as Melinda Gordon David Conrad as Jim Clancy Camryn Manheim as Delia Banks and Jay Mohr as Profes… (More on Paterfamilias)