This report analyzes the roles and functions of leaders and managers in Rays of Sunshine. It compares the characteristics of managers and leaders, discusses management theories such as scientific theory of management and administrative theory of management, and explores leadership theories including action-centred theory, transformational theory, and transactional theory. The report also examines the application of these roles and functions in different situations and applies various theories and models of approach. Recommendations are provided for further research and improvement.