Leonardo Nam was born in Buenos Aires, Argentina, to Korean parents, and moved to Sydney, Australia at the age of 8. He attended Sydney Technical High School, and went on to study for a Bachelor in Architecture at the University of New South Wales. He left Sydney to pursue an acting career in New York at the age of 19. He studied drama with several teachers in New York at HB Studios.
Nam is a determined man. He moved to New York City to study at famed performing arts school HB Studio, which counts Whoopi Goldberg and Al Pacino among its alumni. Knowing no one, he spent his first few nights sleeping in Central Park before moving into a hostel near Madison Square.
"There's that scene in the finale where I discover that [Bernard] (Jeffrey Wright) is a host, and I remember so clearly reading that and being like, 'What? What is going on?' and it really took me a minute to pick up my jaw off the floor," he laughed. "And [series co-creator] Jonah [Nolan] had to say, 'Right, Leo, let's get this going.' I was like, 'What is going on?' so that reaction [on screen] was real."