Greg Miller is an American animator, cartoonist and storyboard artist. He worked on the production of Shrek the Third and Monsters vs. Aliens as the additional storyboard artist. His recent credits include being a storyboard artist, writer, animator, and character designer on Secret Mountain Fort Awesome, Gravity Falls, and Uncle Grandpa. His art style is based on the animation style of Schoolhouse Rock!, which was used in his own television series, Whatever Happened to... Robot Jones?, aired on Cartoon Network from 2002 to 2003 and his short film, The Wizzard of Krudd, a canceled Nickelodeon short featuring the voice of Devon Workheiser as the protagonist.
Greg Miller (animator) Wikipedia