According to Jake's whiteboard, shown at around 1:40, his parents and Amy's parents have the following things in common: golf, painting, international travel, New York, favorite TV show, weather, children and have hair.
Amy's and Jake's fathers, portrayed by Jimmy Smits and Bradley Whitford respectively, previously appeared together in The West Wing (1999): Smits' character running for President of the USA and Whitford's as his campaign manager.
Katey Sagal (Karen Peralta) and Jimmy Smits (Victor Santiago) also starred together as Gemma Teller and Nero Padilla, respectively, in Sons of Anarchy (2008).
Second appearance of Tommy Gobbler (Boyle in a turkey costume), the first being Ava (2015). Once again, his appearance in the bullpen is a disaster.