The purpose of this paper is to propose an intervention design to facilitate group cohesion in therapy with hard-to-treat youths. This research paper is an abridged intervention research design comprised of a literature review and an intervention proposal but does not include an assessment of the intervention. The literature review covers current findings on trauma, neglect, attachment, group therapy, the Theraplay model of treatment, and drama therapy. Trauma, neglected and attachment disruption can lead to difficulties with self-regulation, self-belief, and trust in others which can impede an individual’s ability to function in a group therapy setting. In this intervention, the first step to working with individuals affected by trauma, neglect and attachment disruptions is to focus on building skills around self-regulation using the body, through rhythmic and physical interventions. Secondly, a feeling of safety is facilitated through structured activities and playful social engagement. The proposed intervention outlines a three-phase model based on Theraplay and drama therapy which aims to enhance group cohesion, and improve an individual’s self-regulation, self-confidence, and trust in others.