Patrick McNee later confessed that after the scene when Diana Rigg's Mrs Peel character kisses him goodbye, he went back to his dressing room to weep.
This is the only time that Steed calls Mrs. Peel by her first name.
Aviator Peter Peel was presumed dead three years previously when his plane was lost over the Amazonian jungle due to an engine defect.
Tara King is Agent 69.
Steed prefers his tea stirred anti-clockwise.