This Is Us fans have a lot of questions about Jack's brother Nicky, but Michael Angarano is keeping a tight lip. During an appearance on The Tonight Show Starring Jimmy Fallon, the actor behind the character chatted about those crazy fan theories floating around. He even admitted that his sister, who is a big fan of the show, has become obsessed with the mundanities of his time on set, trying to see if she can get a few spoilers out of him.
While he isn't spilling the beans to his family, he did indulge us by reacting to some of the biggest fan theories out there. Although he manages to keep a good poker face, we feel like he was trying extra hard not to flinch when the host mentions the theory that Nicky is still alive in present day. Hmm. We'll let you decide for yourself as you watch the video above.