Voice-hearing in clinical and non-clinical groups has previously been compared using standardized assessments of psychotic experiences. Findings from several studies suggest that non-clinical voice-hearing (NCVH) is distinguished by reduced distress and increased control. However, symptom-rating scales developed for clinical populations may be limited in their ability to elucidate subtle and unique aspects of non-clinical voices. Moreover, such experiences often occur within specific contexts and systems of belief, such as spiritualism. This makes direct comparisons difficult to interpret. Here we present findings from a comparative interdisciplinary study which administered a semi-structured interview to NCVH individuals and psychosis patients. The non-clinical group were specifically recruited from spiritualist communities. The findings were consistent with previous results regarding distress and control, but also documented multiple modalities that were often integrated into a single entity, high levels of associated visual imagery, and subtle differences in the location of voices relating to perceptual boundaries. Most spiritual voice-hearers reported voices before encountering spiritualism, suggesting that their onset was not solely due to deliberate practice. Future research should aim to understand how spiritual voice-hearers cultivate and control voice-hearing after its onset, which may inform interventions for people with distressing voices.