|This article is about Steven's voice actor. You may be looking for Zachary Steel.|
Zachary "Zach" Callison is an American voice, television, and film actor. He is also a singer. He voices Steven Universe, Onion, the Watermelon Stevens, Patient #2 from "Nightmare Hospital", Melon Mutt from "Super Watermelon Island", one of The Cluster's and Obsidian's voices, Pumpkin, Fisto, Cactus Steven, the Topiary Stevens, the Jingle Singer, and Steven's dream counterpart Stefan in the Steven Universe franchise.
- As of the end of Steven Bomb 3, his favorite episodes are "Steven and the Stevens", "Onion Friend" and "Onion Trade".
- His favorite fusion is Sardonyx.
- His favorite character is Ronaldo Fryman.
- His favorite person to have worked within the voice over business is Jess Harnell.
- He has always wanted to act, as far back as when he was 5 years old.
- It was revealed at SDCC 2016 that he knows some Italian.
- Zach Callison has studied Italian and became fluent.
- Zach stated that out of all the Off Colors, he relates to Padparadscha the most.
- Currently, "Jungle Moon" is the only episode he has not voiced any character in, as it is the only episode in which Steven does not directly appear.
- According to Rebecca Sugar, her decision to give Steven's aged up design a jacket was inspired by the many jackets Zach would wear.
- Zach's Official website
- Zach's Twitter
- Zach's YouTube
- Zach's Instagram
- Zach's Facebook
- Zach's Wikipedia page
- Zach's IMDb page
- Zach's message to a fan.