On December 5, 2025, The First Snow of Fraggle Rock, a holiday special inspired by the beloved Fraggle Rock universe, premiered.
Cassels acted as Canadian production counsel for The Jim Henson Company, Inc., the owner of the Fraggle Rock franchise. Cassels has also previously acted as Canadian production counsel for The Jim Henson Company, Inc. on seasons 1 and 2 of Fraggle Rock: Back to the Rock.