Sherlock Holmes: Monster Slayer

 is an American animated mystery-fantasy-comedy film based on  by, being developed by TBD. It is produced by Disney Television Animation and it airs on Disney Channel and Disney XD since October 31st, 2020.

Synopsis
Sherlock Holmes is considered one of London's finest detectives and has solved several crimes during his life, even the ones who were thought to be impossible. However, things change when Professor Moriarty finds out about an ancient book that allows him to free many monsters as Holmes now needs to find ways to hunt them down before the world gets overrun by monsters.

Main

 * Sherlock Holmes (voiced by David Tennant) - a genius private detective who now hunts for any monsters that may threaten England.
 * Dr. John Watson (voiced by Rodger Bumpass) - Holmes' resourceful assistant who aids Holmes in defeating monsters.

Supporting

 * Irene Adler (voiced by Kari Wahlgren) - Holmes' rather TBD on and off girlfriend who is TBD.
 * Mycroft Holmes (voiced by Alan Tudyk) - Holmes' slightly TBD older brother who is usually TBD.
 * Mrs. Hudson (voiced by TBD) - TBD
 * Inspector Lestrade (voiced by TBD) - TBD
 * The Birdcaller (voiced by TBD) - a mysterious bird-like man who lurks around, often telling Sherlock strange and cryptic advice.

Antagonists

 * Prof. James Moriarty (voiced by Mark Hamill) - a maniac criminal mastermind who summoned TBD.
 * Sebastian Moran (voiced by Corey Burton) - Moriarty's TBD henchman who TBD.
 * Sir Francis Varney (voiced by TBD) - a vampiric count who is TBD.
 * The Reptilian (voiced by TBD) - a terrifying komodo dragon-crocodile-snake humanoid hybrid who has been infamous for kidnapping people, especially kids, as well as pets.