He used to lay lilies at the feet of the handsome doorman at the Savoy Hotel in London.
He is interred at Brompton Cemetery in London alongside his father, mother and sister.
His widow Janette passed away in 1970, aged 92.
More than three decades after his death, he appeared in archive footage taken from The Bride of Frankenstein (1935) in the opening credits of Weird Science (1994). The same is true of Boris Karloff.
Alec Guinness recounted in his journal "A Positively Final Appearance" a story about Thesiger, saying he was once stopped by a woman while walking through Picadilly, who asked him, "Didn't you used to be Ernest Thesiger?" To which he replied bluntly, "Still am!" and hurried on.