Three of the apostles mentioned in the Bible are Peter, Andrew and James. There were 12 apostles named in the Bible. Essentially, an apostle is a disciple; the two words are interchangeable.
The apostles were a group of 12 men chosen by Jesus to be his closest followers. These men became the founding leaders of the New Testament church. The purpose of the apostles was to spread the gospel across the world by preaching the teachings of Christ and ministering to those in need. The men chosen to be disciples were not scholars or religious leaders, but rather ordinary men that Jesus saw fit to carry out his mission.