He was probably that random young man from Mark 14:51-52.  Just like John the Disciple would refer to himself without using his name in his Gospel, John Mark may be doing this in this book of the Bible.  Now, here is a fun fact, and it’s the reason you’ve been seeing a buddy with Little John the whole time.  Who dictated the words of this Gospel to Mr. Mark?

-Peter-

-Paul-

-Barnabas-

-John the Baptist-