Agatha Cromwell

Splendora Agatha "Aggie" Cromwell is the mother of Gwen and grandmother of Marnie, Dylan, and Sophie. She is the daughter of Marvin, Merlin's cousin. Her mother was the Queen of Halloweentown

Story

In Halloweentown, she resides in the magical world of Halloweentown and visits her daughter and grandkids every Halloween hoping to persuade Gwen into starting Marnie’s witch training befor she loses her powers forever. After returning to Halloweentown she discovers that the kids tagged along and allows them to stay with her until she can take them back to their mother’s. At the end of the movie she agrees to move in with Gwen in the Mortal World.

In Halloweentown ll: Kalabar’s Revenge, She travels to Halloweentown with Marnie to find out why her magical bag has stopped working. They discover that Kal has stolen her Spell Book and has used the Grey Spell on the creatures of Halloweentown, turning them into mortals and stripping them of their powers. She, Marnie, and Luke, in Halloweentown, along with Dylan and Sophie, in the Mortal World, create a spell that allows them to force open the portal between the worlds at any time.

In Halloweentown High, she tries to fit in by taking various teaching jobs at Marnie and Dylan's high school and falls for the principal. She ends up using magic to teach and ends up switching classes quite often.

Young Witch

During the Dark Times, Splendora Agatha Cromwell was the Princess of Halloweentown, who possessed an ancient power known as the Gift, it was a necklace that had great power to give the wearer complete control over any person - but it could only be worn by a Cromwell witch. An evil battalion of dark warlocks and witches known as the Dominion, sought the Gift and wanted Splendora to use it to dominate Halloweentown. Wanting to live like a regular witch, Splendora placed the Gift in a chest and hid it under the ruins of Witch University, it is said that only her heir could unleash the Gift that's stored inside and use the power within it.