Cas Holman
Toy designer and educator
Cas Holman is an American toy and space designer who builds things that encourage open-ended play. She co-wrote Playful with Lydia Denworth.
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Born 1974
Photo: Alihd23, CC BY-SA 4.0, via Wikimedia Commons
About Cas Holman
Cas Holman (born 1974) is an American designer of toys and spaces built around unstructured play. She founded Heroes Will Rise and created the Rigamajig play system. Holman formerly taught at Syracuse University and the Rhode Island School of Design, where she was an Associate Professor of Industrial Design. She appeared in the Netflix series Abstract: The Art of Design, in an episode about her design philosophy. With Lydia Denworth, she wrote Playful, published by Avery in October 2025.