Cho immigrated to Los Angeles in 1978, when he was just six years old.

Has worked with actor Eddie Kaye Thomas on five different occasions. They both appeared in the movies American Pie (1999), American Pie 2 (2001), American Wedding (2003), and Harold & Kumar Go to White Castle (2004). They also co-starred together in the WB's short-lived sitcom "Off Centre" (2001).

John was raised in Los Angeles.

Graduated from the University of California at Berkeley with a Degree in English/Literature.

Along with Alex Kalognomos and Eva Mendes, he attended Herbert Hoover High School.

Lead singer for the Los Angeles band "Left of Zed".

His father is a reverend.

Appeared on the TV show, The Family Feud along with his other brothers.