¿Mel Gibson, premature father?
Mel Gibson perfoms role play Mark Wahlberg's father in the second part of 'Daddy's Home'. However, both actors only are more than 15 years.
John Lithgow "Whitaker"
John Lithgow perfoms role play to Brad Whitaker's father. So, he is Mr. Whitaker. Curiously enough, Lithgow also had this last name in a character who he had on TV show 'How I met your mother': Jerome Whitaker.