Supernatural: 10 Characters Who Appear The Most In The Series

Jack Kline – 36 Episodes. One of the most unexpected things to happen in Supernatural was the addition of a fourth main character in season 13, as Jack Kline joined Dean, Sam, and Cas to make up the new Team Free Will. Jack debuted and was born in the season 12 finale “All Along The Watchtower,” appearing for the last time in the show’s …

https://screenrant.com/supernatural-characters-most-appearances/