‘Sopranos’ star Jamie-Lynn Sigler revealed the advice her late co-star and on-screen dad, James Gandolfini told her following her emotional diagnosis with multiple-sclerosis in 2003. “I remember his first reaction was, ‘You’re just a kid,’” Sigler said on the Question Everything podcast July 9. “And he always reminded me of that, and he would always try to remind me like, ‘You don’t have to know it all. You don’t have to have it all figured out. You’re so young, and this is so big.’”