Potter was born on September 12, 1995 in Portland, Oregon. His father is Japanese and his mother Jordanna, whose surname is "Potter", is white. He is Jewish on his mother's side. Ryan's maternal grandmother was Jewish and he has said that he is Jewish. He was raised in Tokyo, Japan, until returning to the United States when he was seven. He was raised by his single mother. Potter grew up fluent in both Japanese and English and the age of eight, he began studying White Tiger kung fu, a discipline which he would continue to pursue throughout his teenage years. Other childhood interests reportedly included baseball, skateboarding, and playing the drums. His first language was Japanese and his second is English.