The Scrum Master, the Product Owner, and the Developers are the three main ROLES in Scrum. The three roles undertake specific responsibilities and obligations to enable teams to deliver work effectively. As the basis of Scrum is self-organization, empiricism, and CONTINUAL improvement, teams take ownership of how they structure themselves and CONTINUE to improve. 

The Scrum Master is essentially the leader of the team or supervisor in CHARGE of making sure that the Scrum team completes all of the tasks that have been assigned to them. The Scrum Master collaborates with the Scrum team to guarantee that each sprint is completed in a timely manner and that the team's workflow is in order. 

The Product Owner is essentially a project stakeholder who is in charge of managing the product backlog. He or she is also in charge of defining the team's vision and goals. The Project Owner works with customers and end-users to gather requirements that the team can use to design the BEST product possible. 

The Scrum Team is made up of individuals who are individually responsible for working together to achieve a certain project. It is the development team's responsibility to create genuine product increments and achieve sprint objectives. Every member of the team should be self-motivated, dedicated, and accountable for the work's high quality.