Sherlock Holmes in the 22nd Century - Season 1 - Eps 8: The Scales of Justice
Dr. Grimsby Roylott uses a snake, not to kill his daughter, but to become a snake-man to steal nanobot technology to save his failed New London Zoo. The clues are a snake scale with hair, a sabotaged hovercraft, the Zoo financial records and the history of the animal rights activists, the Earth Sentinels.
About Sherlock Holmes in the 22nd Century

Title: Sherlock Holmes in the 22nd Century
First Air Date: 1999-09-18
Last Air Date: 2001-07-21
Status: Ended
Rating: 7.8/10 (from 13 votes)
Language: EN
Seasons: 2
Total Episodes: 26
Network: FOX Syndication Fox Kids
Genres: Animation, Mystery, Crime, Sci-Fi & Fantasy
Production Companies: DiC Entertainment, Scottish Television Enterprises
Synopsis
Sherlock Holmes in the 22nd Century is an animated television series, in which Sherlock Holmes is brought back to life in the 22nd century. The series is a co–production by DiC and Scottish Television and was nominated for a Daytime Emmy for Special Class Animated Program.
Cast

Jason Gray-Stanford
Sherlock Holmes (voice)

Akiko Morison
Inspector Beth Lestrade (voice)

John Payne
Dr. John Watson (voice)

Richard Newman
Professor James Moriarty (voice)

William Samples
Chief Inspector Greyson (voice)

Ian James Corlett
Martin Fenwick (voice)

Viv Leacock
Wiggins (voice)

Jennifer Copping
Deidre (voice)

Gillian Barber
(voice)

Kathleen Barr
(voice)