Dr. John Stevenson also known as Jack the Ripper is the main antagonist in ABC's new sci-fi drama Time After Time.


Doctor Stephenson has an incredibly unique DNA makeup, unlike any other known human. His physiology has immunity from all infectious diseases and mutation.

John becomes the main inspiration for HG Wells' novel them to The Invisible Man.


Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.