Mystery 101 is an American/Canadian series of mystery TV movies created by Robin Bernheim and Lee Goldberg. It stars Jill Wagner, Kristoffer Polaha and Robin Thomas. The series airs on the Hallmark Movies & Mysteries channel in the United States and on the W Network in Canada. Co-lead Wagner posted in April 2022 regarding her concerns about Hallmark not talking with her about the series' status. Her concern was justified. The series was officially cancelled by the network a year later, in late April 2023.