“Vince wanted her always to be such a strong person, somebody who didn’t fall apart and who didn’t wallow in self-pity but really always took charge,” says Gunn. “That was always really fascinating about her. That a mind as brilliant as [Walt’s] mind was, her mind was as brilliant in her own way. She was always trying to figure out, ‘Okay, this is the situation, this is the challenge. Now what do we do? How do we go into action?’”