Cecil Dewfort:

Bio
Cecil runs a library in an old church. He has some occult books there too.

Episodes
In Ep.1 Cecil runs a vaguely magical/occult library out of a building which used to be a church. He had been keeping a ledger of the children who went missing every year on halloween. When the hunters discover this, he told them it was known to his family for many generations that "The River Monster cannot be killed" and that the Lomere River was very important... and somehow magically affiliated... many of the details had been lost to time. After the hunters were able to kill the River Monster by splashing it with water from the Lomere, Cecil felt very foolish and ashamed that he and his forfather had let this go on so long.

After Ep.4 Heather Called Cecil and asked him to help her take care of the Grikitch's body which lay lifeless on the floor of her shop. He helped her clean up the mess and took the body away to be disposed of.

In Ep. 6 Cecil caught a glimpse of a terrifying monster out of the window of his library. The monster was clear to him to be the one on the cover of an ancient book deep in his archives that had been passed down over generations. It has been passed down that the book is NEVER to be opened unless the creature on the front is seen. The very first line in the book says to bring the creature into contact with the waters of the Lomere ASAP. but... Cecil just saw the creature climb straight throught the river, unfazed... As this episode ended, Cecil started to read the full book.

Secrets
Cecil is filled wit regret about the kids he let be taken by the river monster over the years.

After reading the book, Cecil knows that the spell to recast the River Ward involves drowning one of ever species of 'ward-excluded' creature in the river.