For other characters with the same first name, see John (disambiguation).

"Hello, John."
" I know you?"
"You're not wearing your ring. Things must be different here.
Barry Allen comparing John Diggle to "John"[src]

John was a resident of Earth-90. According to his world's Barry Allen, he was notable for a ring he wore and was John Diggle's doppelganger.


John frequently wore a ring. He was also an acquaintance of Barry Allen.[1]

In 2018, the Monitor invaded Earth-90 and seemingly killed all of its residents. Because of that, John died.[1]


  • Ring: According to Barry Allen, John was notable for a ring he wore.[1]



Season 7

Behind the scenes


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