<Li> Jill Johnson as Laurie: A member of Toby and Kate's weight - loss support group . </Li> <Ul> <Li> Peter Onorati as Stanley Pearson: Jack's father . </Li> </Ul> <Li> Peter Onorati as Stanley Pearson: Jack's father . </Li> <Dl> <Dd> Jack had a strained relationship with Stanley, who was alcoholic and abusive . When Stanley was dying, Jack did not want to see him . </Dd> </Dl>

Who is jack's father in this is us