Actor Allusion: In "How's Your Father?" from Series 1, Jeremy Brown reveals that he was left on the doorstep of an orphanage as a baby. Barry Evans, who played Jeremy, was also left on the doorstep of an orphanage as a baby, and never knew who his biological parents were.
The Danza: Jamila Ranjha was played by Jamila Massey.
Fake Nationality: Though most of cast comprised actors and actresses of the same ethnicity as their characters,note If they were not born in the same country as their characters, their family heritage was from that country; for example, George Camiller (Giovanni) was born in Britain to Italian parents, Pik-Sen Lim (Chung Su-Lee) was born to ethnic Chinese parents in Malaysia, while Francoise Pascal (Danielle Favre) was born in Mauritius (then a British colony) to French and Hungarian parents. there were exceptions.
Anna Schmidt, a German, was played by British actress Jacki Harding.
Ranjeet Singh, a Punjabi Sikh, and Ali Nadim, a Pakistani Muslim, were respectively played by Albert Moses, who is native to Sri Lanka (not only not part of India, but off the opposite end of India from the Punjab region), and Dino Shafeek, who was a Muslim but hailed from what is now Bangladesh.
The Japanese Taro Nagazumi was played by Robert Lee, who was of Chinese descent.
The Greek Max Papandrious was played by Kevork Malikyan, a Briton of Armenian descent.
Maria Papandrious, who replaced Max as a Greek representative for Series 4, was played by British actress Jenny Lee-Wright.
Hey, It's That Guy!: Most of the cast were character actors who turned up in various British films and television series across the 1970s and 1980s, but just to name a few examples:
Jeremy Brown was played by Barry Evans, whom audiences at the time would have remembered as Michael Upton from Doctor in the House and Doctor at Large.
Pik-Sen Lim as Chung Su-Lee may be familiar to Doctor Who fans as Captain Chin Lee in the Jon Pertwee-era story The Mind of Evil.