Guest Stars Eugene Byrd as Dr. Clark Edison Sean Blakemore as Grayson Barasa Indira Varma as Inspector Cate Pritchard Michael Brandon as Roger Frampton Ed Coleman as Cyril Bibby Tuppence Middleton as Vera Waterhouse Andrew Buchan as Dr. Ian Wexler David Yelland as Gerard Bonham Ben Righton as Harry Bonham Ty Glaser as Heather Miller Jane How as Anne Bonham Sheila Reid as Paige Bonham Co Starring Simon Dutton as William Curry Nick Ellsworth as Jamison
