Client attachment to therapist is a new topic in the field of clinical social work. Using attachment theory, this study examined the relationship between three types of client attachment to therapist (secure, avoidant-fearful, and preoccupied) and the following variables: marital status, age of participant, and gender of the social worker, among a sample of 174 mental health clients. The results showed that there is a significant relationship between a secure pattern and gender of the social worker. In addition, they showed a significant relationship between avoidant-fearful and preoccupied patterns and the marital status of the participants. Furthermore, the results indicated a significant relationship between a preoccupied pattern and the age of the participants. The findings of the current study have implications for the field of clinical social work in Kuwait.