Kyrano

Tin-Tin's father lived with her on Tracy Island, the headquarters of International Rescue.

In an account dated to January 1965, Tin-Tin and her father thought that Jeff Tracy would like a cup of coffee while waiting for news of the ongoing rescue mission. Tin-Tin delivered the drink to Jeff on her own. (TV: The Man from MI.5)

Other sources dated the activities of International Rescue to the 1990s, (PROSE: The Dying Days) the 2060s, (PROSE: Titan Declares War! et al.) and the 2080s. (PROSE: Captain Scarlet in Death Crash! et al.) In at least one of these timeframes, the year 2066, Tin-Tin was shown to be alive and well. (COMIC: Solar Danger)

Information from invalid sources
Kyrano was a servant whose brother went by "the Hood". (NOTVALID: Spectrum Promotion Examination Green 3)

Other matters
Although Kyrano only received a mention in The Man from MI.5, he was voiced by David Graham in nine of the thirty-two episodes of Thunderbirds. Additionally, Kyrano did not appear in the remake series and is mentioned in just one episode.