Her father is African-American, and her mother is Korean-American.
"Sohn" is her mother's maiden name. She changed her name because her father disapproved of her becoming an actress.
Grew up in Newport News, Virginia.
Graduated from Warwick High School. She was a cheerleader and was voted "most popular" and "most school-spirited.".
Studied English at Brooklyn College which led to her writing poetry.
Sonja Sohn's youngest daughter (of two), Sophia Wang makes several brief on-screen appearances which made it into the final cut of the show. One such moment takes place in Episode 3 of Season 5 titled "Not for Attribution" where she plays the part of Six Flags Girl #2.