Watch 'This Is Us' cast put these Jack Pearson photos in order
01:20We challenged 'This Is Us' stars Milo Ventimiglia, Justin Hartley and Susan Kelechi Watson to place these photos on the show's timeline, based on Jack's facial hair.
We challenged 'This Is Us' stars Milo Ventimiglia, Justin Hartley and Susan Kelechi Watson to place these photos on the show's timeline, based on Jack's facial hair.