Diabolical Facts, FAQ & Common Questions
2018 · Investigation Discovery · Status: Returning Series · Rated: TV-14
Frequently Asked Questions About Diabolical
Direct, verified answers to the most common queries regarding episodes, renewals, watch order, and streaming availability.
How many seasons and episodes does Diabolical have?
Diabolical has 3 seasons and 30 total episodes, spanning from its premiere on January 1, 2018 to May 12, 2020.
Is Diabolical renewed, ended, or canceled?
Diabolical is currently an active returning series with future seasons planned or in development.
How long does it take to binge watch Diabolical?
It takes 21h 0m (1260 minutes) to watch the complete run of Diabolical. At a standard pace of 2 hours per day, you will finish the entire series in approximately 11 days. Not realistic for a 48-hour weekend. At 21 total hours, watching at a healthy 2 hours per day will take approximately 11 days.
Where can you stream or watch Diabolical?
Diabolical is available for streaming on HBO Max Amazon Channel, Philo, Discovery+ Amazon Channel, YouTube TV, Investigation Discovery, HBO Max, Discovery +. Availability may vary by regional territory, subscription tier, and digital purchase availability.
What is the official age rating for Diabolical?
Diabolical has an official content rating of TV-14.
Who are the lead actors in Diabolical?
The primary ensemble cast includes Ross Huguet as Narrator (voice), William Cataldo as Self - Assistant Prosecutor, Macomb County, MI, Kerrie Droban as Self - True Crime Author, Leslie Rule as Self - Co-Author, 'Lying in Wait'.
Ensemble Cast & Current Ages
Lead cast members, their character identities, and current ages calculated from official biographical records:
| Actor | Character | Current Age |
|---|---|---|
| Ross Huguet | Narrator (voice) | – |
| William Cataldo | Self - Assistant Prosecutor, Macomb County, MI | – |
| Kerrie Droban | Self - True Crime Author | – |
| Leslie Rule | Self - Co-Author, 'Lying in Wait' | – |
Editorial Verification & Sources
All production facts, air dates, cast credentials, and streaming metadata for Diabolical are compiled from official broadcaster archives, TMDB, and Wikidata records. Last verified on November 5, 2026.