Will Boppel is a friend of Rachel and Dan’s and unwillingly gets roped into Rachel and her brother Rob’s shenanigans. He might have a crush on Rachel though, so he allows it.
Rachel Muello is a friend of Will and Dan’s and is usually the cause of the group’s problems along with her brother Rob.
Dan Flora is a friend of Will and Rachel’s and always tags along on their escapades.
Clyde Watson is a Skeleknight general who ordered Vlad, Beetle, and Max to retrieve the skull.
Vlad Petrov is a Skeleknight and was ordered to retrieve the skull by Clyde.
Beetle is a Skeleknight and was ordered to retrieve the skull by Clyde.
Dr. Hubert Phom was a Skeleknight scientist who defected from the Skeleknights but didn’t know how to take his helmet off, not realizing it was being monitored. He is a friend of the Muello family.
Max Bell was a Skeleknight and was ordered to retrieve the skull by Clyde. She defected from the Skeleknights after she realize they were going to lose. She is currently living with Dan and his family.
Humphrey Talbot is a member of the Interdimensional Patrol who was tasked with retrieving the skull from the Skeleknights to prevent dimensional anomalies.
Roxanne Muello is Rachel’s distraught mother. She also has a son, Rob Muello, whose whereabouts are unknown, leading Roxanne to worry for Rachel constantly.