Fred Armisen is the grandson of a dancer-turned-spy, and it’s blowing his mind in a Finding Your Roots exclusive

Last January, Fred Armisen appeared on The Tonight Show With Jimmy Fallon, during which he told his former Saturday Night Live castmate about traveling to Japan to learn more about his paternal grandfather, the dancer and choreographer Masami Kuni. The Portlandia star mentioned that he was inspired to learn more about Kuni after an appearance on PBS’ ancestry series, Finding Your Roots; what he didn’t share on The Tonight Show couch is the additional layer of intrigue revealed during his visit with Henry Louis Gates Jr.