Character designer, illustrator, and visual development artist who graduated from the character animation program at the California Institute of the Arts in 2008. Heidi was the character designer and conceptual designer for ParaNorman, and she also won an Annie award for her designs in 2013.

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Heidi has also worked as a character designer for Henry Selick at Cinderbiter, The Jim Henson Company, DreamWorks Animation, Warner Brothers Animation, and Sony Pictures Animation.