Matthew and Mark are the only 2 Apostles of Gospels.
Mark 3:16-19
It was mainly Matthew and john the apostles wrote it. but Mark and Luke also wrote but they were not apostles.
apostolic
mark is a fisherman just like Simon peter,john and other apostles
Mark's occupation was not given. He was not an apostle either.
The 4 Apostles of the Gospels.
Luke was not one of the 12 disciples. He was a physician and historian who wrote the Gospel of Luke and the Acts of the Apostles in the New Testament.
The Church is Apostolic.
Apostolic
Apostolic is the mark of the Church which indicates that the teaching authority of the Church comes directly from Jesus and his chosen Apostles because the bishops of the church are direct successors of the Apostles.
St. Mark was not one of the 12 chosen by Jeasus.