Episode 25 - The Forget-Me-Knot6½ stars by Brian Clemens Directed by James Hill Cast click a name to see the face John Steed Patrick Macnee {regular}{New Avengers}{007} Emma Peel Diana Rigg {regular}{New Avengers}{007} Tara King Linda Thorson {regular}{The Saint} (billed under 'Introducing...') Sean Mortimer Patrick Kavanagh {Adam Adamant} Mother Patrick Newell {regular}{Dr Who}{Dangerman}{Randall and Hopkirk} Simon Filson Jeremy Burnham {regular}{New Avengers}{Dangerman}{The Professionals}{The Saint}{Randall and Hopkirk} George Burton Jeremy Young {regular}{New Avengers}{Dr Who}{The Professionals}{The Saint}{Adam Adamant}{Department S}{Randall and Hopkirk}{Space 1999}{The Sweeney} Karl Alan Lake {regular}{Dr Who}{Blake's 7}{The Saint}{Department S}{The Sweeney} Brad Douglas Sheldon {Dr Who} Dr Soames John Lee {regular}{Dr Who}{Dangerman}{The Champions} Sally Beth Owen Taxi Driver Leon Lissek {The Professionals}{The Saint}{The Sweeney} Jenkins Tony Thawnton {Dangerman}{Jason King}{Randall and Hopkirk}{Department S} Giles, The Gardener Edward Higgins {regular}{The Saint} Trainee unknown Peter Peel Patrick Macnee {regular}{New Avengers}{007} Peter Peel (driving) Paul Weston {regular}{007}{Indiana Jones}{Star Wars}{Space 1999}{Blake's 7}