Peter (played by Peter Bowles) is a protagonist in Stigma.
Katharine (played by Kate Binchy) appears in Stigma.
Verity (played by Maxine Gordon) appears in Stigma.
Dave (played by John Judd) appears in Stigma.
Dr. Hall (played by Jon Laurimore) appears in Stigma.
Richard (played by Christopher Blake) appears in Stigma.