This study examines the impact of individual characteristics and cultural values on citizenship and task performance (CTP) of non-academic staff members of Sri Lankan universities. Literature review provides conceptual support for the proposed links between individual characteristics, cultural values, and CTP. Survey strategy was adopted and a questionnaire was distributed among 125 employees of five universities. Analysis was based on 72 usable returned questionnaires. ANOVA, correlation and regression analyses were performed in order to examine the proposed impact.