PURPOSE To examine prediction power of personality traits, expressed emotion, and coping strategies on caregivers' burden. DESIGNS AND METHODS Cross-sectional descriptive correlational design was used to collect data from 196 caregivers using the Self-Administered Questionnaire from Jordanian caregivers of patients with serious mental illness. FINDINGS Jordanian caregivers had a moderate-to-severe burden level (M = 47.1, SD = 11.5). Burden had a significant negative relationship with coping (r = -.15, p = .04) and significant positive relationship with personality dysfunction (r = .16, p = .021). Emotional expression, coping, and personality were found to be significant predictors of burden (F = 5.16, p = .002). PRACTICE IMPLICATIONS Mental health professionals need to address family caregivers in their plans of care.