Zach Callison

Zach Callison (born October 23rd, 1997; age 20) is an American voice, television and film actor best know for his role as Steven Universe, as well as Onion, from Steven Universe and Prince James from Sofia the First. He voiced Michelangelo in the SDCC 2016 short, Pizza Friday.

http://www.imdb.com/name/nm2642131/