NIST's five cloud Actors

 1.Cloud service consumer

Individual on entity that utilizes or subscribes to cloud-based services or resources.

 2.Cloud service Provider (CSP)

The company that provides the cloud-based platform on services.

 3.Cloud carrier

The intermediary that provides connectivity and transport of cloud services between the CSPs and the cloud service consumes.

 4.Cloud services Broker

A third-party entity which acts as a liaison between customers and CSPs ideally selecting the best providers for each customer.The CSB acts as a middleman to broker the best deal and customize services.

 5.Cloud service Auditor

Third-party organization that verifies attainment of SLA.