Fogelman said the season's first episode will create "some momentum" toward filling in the blanks about Jack's death.
How does Jack die? 'This Is Us' answer coming in season 2 →
Moore also will spend a "lot of time" in aging makeup for the later years in which her widowed character has remarried, Fogelman said.
How does Jack die? Answer coming in 'This Is Us' season 2 →