TV series

Mark of a Killer

Name: Mark of a Killer
Genre: Documentary, Crime
Cast: Timothy Kee, Steve Eifert, Roger Albelo, Luke Cross

2019–, English.

All serial killers commit murder to satisfy their grand fantasies, but the murderers featured in this true-crime docuseries take it one step further, committing heinous acts that allow them to extend their fantasies and relive the excitement of their crimes again and again.

Documentary Crime

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Seasons: 4
Episodes: 34
Episode length: 43 min
Status: Still running

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Where to watch Mark of a Killer

Mark of a Killer is streaming on Peacock Premium, YouTube TV, and Peacock Premium Plus in India.

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Availability in India as of 10 November 2026. Streaming data by JustWatch.

Latest episode

S3 E14: The D.C. Sniper

Aired 23 April 2022

Seasons 4

Season 1

2019 · 6 episodes

Season 2

2020 · 10 episodes

Season 3

2021 · 14 episodes

Season 4

2022 · 4 episodes

Cast & crew

Details

First aired: 20 January 2019
Language: English
Country: United States
Type: Documentary
Rated: TV-14

Check ratings elsewhere

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News & fan talk

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Mark of a Killer: quick answers

Is Mark of a Killer worth watching?

Mark of a Killer doesn’t have enough ratings for a verdict yet.

How many seasons of Mark of a Killer are there?

Mark of a Killer has 4 seasons and 34 episodes, about 43 minutes each.

Is Mark of a Killer finished?

Mark of a Killer is still listed as returning series; no new episode date is announced yet.

Which OTT platform is Mark of a Killer on?

Mark of a Killer is streaming on Peacock Premium, YouTube TV, and Peacock Premium Plus in India. (Checked 10 November 2026.)

Mark of a Killer parents guide: is it suitable for kids?

Mark of a Killer is rated TV-14. Check the rating guidance before watching with young children.

What shows are like Mark of a Killer?

If you liked Mark of a Killer, try Conversations with a Killer: The Jeffrey Dahmer Tapes, Crime Scene: The Texas Killing Fields, The Idaho Murders: College Nightmare.