Patients referred with anger problems often do not attend for treatment. The aim of this study was to determine if group Cognitive Behaviour Therapy (CBT) was feasible. Patients referred for help with their anger were assessed, given 6 sessions of group CBT and re-assessed. Of 119 patients referred, 49 (41%) did not attend the initial appointment. Patients who attended for interview were invited to participate in the group CBT. Only 11 patients (9%) of those referred for therapy attended for the full course of CBT. Thirty-four patients (29%) were exposed to at least one session of CBT, while 66 patients (56%) did not attend for any therapy. Patients who attended for some or all of the CBT treatment reported reductions in the frequency and intensity of their anger outbursts. There was also a significant reduction in measures of their anger traits. It could be concluded that group CBT is an appropriate way to deliver this therapy to patients with anger problems, but it is clear that many of those referred are ambivalent about therapy and will not attend. Figures are given that will allow the planning of a randomized controlled trial to evaluate the difference between individual and group based CBT for patients with anger problems.