Kolose 4:10

Aristarkhus : a man who accompanied Paul on his third missionary journey

Barnabas : a man who was Paul's companion on several of his journeys

Markus : a nephew of Barnabas and companion of Paul; author of the Gospel of Mark

Kolose 4:14

Demas : a man who worked with Paul and later deserted him

Lukas : the man who wrote the book of Luke and the book of Acts