Mark Margolis has died at the age of 83

Mark Margolis was born in 1939 in Philadelphia

He received acting training from famous teacher Stella Adler in New York.

He started his career on stage

Also appeared on Broadway with roles based on Shakespeare's "Julius Caesar" and "Infidel Caesar"

He founded the Blue Dome Touring Theater Troupe.

Mark Margolis also made his mark in other television shows such as "The Equalizer," "Oz," "Kings," and "American Horror Story: Asylum."

Margolis was a major character in the TV series "Breaking Bad" and its prequel "Better Call Saul".