Research on ambulance culture and identity is globally scant and nonexistent within a Swedish context. This study on Swedish ambulance nurses serves as a first step and an important entry point into this topic. The purpose was to describe professional ambulance identities among four participants who had served between several years and decades in the ambulance services. Qualitative data was obtained through initial in-depth interviews and follow-up data gathering at a later stage. The theoretical underpinnings adhered to both narrative psychology and dialogical self theory, strengthening the capacity to develop new knowledge about professional identities. The findings present four distinct types of identities among the participants. Individuality and diversity amongst the development of core identities is shown to be cultivated by the dialogue between professional and personal identities. This dialogical process began at a stage in the ambulance career when the strict demarcation line between professional and personal identities was crossed.