Michael Gaffigan is a son of Jeannie and Jim Gaffigan who was named after his paternal grandfather and uncle. Though he rarely makes public appearances, he was featured on Jim Gaffigan: Cinco special and A Short Film by @JeannieGaffigan. Moreover, the boy attended the premiere of Mary Poppins Returns in 2018.
Jim Gaffigan shares that to stay connected to Michael and his siblings, he tries to be at home before they go to bed. Moreover, the comedian avoids working on Sundays.
A curious fact: when Michael was born, his father joked that having a fourth kid was like someone handed you a baby while you were drowning.