She and Parker (Her Ladyship's butler/chauffeur) are friendly rivals, of sorts; he invariably calls her Lil, as they spar back and forth in the Manor's kitchen.
Beneath that gruff exterior, it appears Parker harbors a genuine fondness for her. In The Cham-Cham, he fancies "taking cook out for a punt," on his afternoon off (perhaps the way to a man's heart truly is through his stomach!).
Lilian appears in Vault of Death and Thunderbirds Are Go (film). She also makes a cameo appearance in the Thunderbirds 1965 episode The Stately Homes Robberies (where Lady Penelope refers to her by her proper name!).
Thunderbirds Are Go
Lillian's appearance in the movie Thunderbirds Are Go is not widely known, because she is almost completely hidden from view. It is clear however, that when the makers decided to put the entire International Rescue team in the final sequence at The Swinging Star (except for John, who was on duty), they definitely did not forget Lillian.
- In The Duchess Assignment, the Lilian puppet appears in two different cameo roles: at the Duchess of Royston's gambling table in the French Casino at the start of the episode, and again at the Art Gallery, admiring the Duchess' Braquasso painting, Portrait of a Gazelle. In The Cham-Cham it played a guest at the Paradise Peaks Hotel. In Alias Mr. Hackenbacker, it was seen at the Café Atalante, Paris. In Thunderbirds Are Go (film), it played one of the reporters at the Press Conference, and a guest at The Swinging Star.