Introduction: Clinical incidents are an unfortunate reality in the health care system. Patients and their families are the first victims of these incidents. The health care providers involved in the error are considered the second victims. This research aimed to evaluate the level of awareness of the second victim phenomenon (SVP) in Canadian radiation therapists, determine the post-incident emotional and physical reactions experienced, and determine the existing and/ or recommended systems for support. Methods: Mixed method design comprised two phases. In phase I, Canadian radiation therapists were invited to view an informational presentation about the SVP and complete an online survey. In phase II, participants partook in an online discussion forum. Results: Survey results indicate that 31% of respondents were previously aware of the SVP and 86% of respondents report having been involved in a clinical incident. In addition, the results confirm that Canadian radiation therapists who have been involved in health care-related incidents do experience emotional and physical reactions. Most respondents indicated they lacked appropriate organizational support to help them recover from the clinical incident. Support from a colleague is the preferred method of support immediately after the incident. Finally, survey respondents indicated a clear desire for implementation of defined processes for postclinical incident supports.