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 will premiere on Disney Channel and Disney XD on 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 TBD.

Main

 * Sherlock Holmes (voiced by David Tennant) - a genius private detective who now TBD.
 * Dr. John Watson (voiced by Rodger Bumpass) - Holmes' TBD assistant who TBD.

Supporting

 * Irene Adler (voiced by [depends of who can do the Brit accent better, Jennifer Hale, Vanessa Marshall, Catherine taber, Crey Griffin, Kath Soucie, Tara Strong, Hynden Walch, Cristina Pucelli, Nika Futterman, Kari Wahlgren or TBD]) - TBD
 * Mycroft Holmes (voiced by TBD) - TBD

Antagonists

 * Prof. James Moriarty (voiced by Tim Curry) - a TBD criminal mastermind who TBD.