Writer on Board: Sylvia Anderson happily admitted in her autobiography that the Cliff Richard dream sequence added nothing to the film, but she pushed it through because of "sheer indulgence".
The 2015 animated series
Acting for Two: Both Scott and Alan are voiced by Rasmus Hardiker, and Virgil and Gordon are both voiced by David Menkin.
Blooper: "S.O.S. Part 2" has Gordon launch Thunderbird 4 from Tracy Island. When we are shown the launch bay, Thunderbirds 3 and Shadow are shown to be absent even though no one else has left Tracy Island, and are both shown in the hangar a few minutes later.
Aezethril (of the episode Endgame) is voiced by Sylvester McCoy. His real name is also Sylvester.
Development Gag: Interestingly, Brains', ah, ah, Speech Impediment from the original series is almost completely gone in this version. This could serve as a nod to Gerry Anderson's proposed Thunderbirds remake, T-Force, in the 1980s, in which the stammer would have been gone entirely, rendering Brains to be actually quite an eloquent speaker (which he is here).
Distanced from Current Events: The episode "Inferno" was held back from airing in the UK in 2017 due to the Grenfell Tower disaster (where over seventy people were killed in a burning apartment block in London) having occurred months earlier. It still aired in Australia.
The Other Darrin: Due to the Thunderbirds TV series dating back to 1965 and most of its cast having retired, being too old, or having died long ago, every role was inevitably recast:
Despite David Graham coming back to voice Parker, he's been replaced by Kayvan Novak as Brains and David Menkin as Gordon.
Due to Christine Finn's death in 2007, Sandra Dickinson voices Grandma Tracy.
Scott and Alan are voiced by Rasmus Hardiker. Their respective original voice actors, Shane Rimmer and Matt Zimmerman, were in their early 80s at the time of the show's airing. Rimmer has since died.
David Menkin also replaced David Holliday and Jeremy Wilkin as the third voice of Virgil.
Ray Barrett, the original voice of John and the Hood, died of a brain haemorrhage in 2009. As a result, in this series, John and the Hood are respectively voiced by Thomas Brodie-Sangster and Andres Williams.
Peter Dyneley, the original voice actor of Jeff Tracy, died of cancer, leaving Lee Majors (Yes The titular The Six Million Dollar Man himself) to take up the role as the Tracy brothers' disappeared, but still alive father.
Out of Order: Thanks to being shown on ITV on a bank holiday weekend instead of the usual CITV morning timeslot, Episode 13 ("Tunnels of Time") aired tenth.
Role Reprise: David Graham reprises his role as Parker from the original series.
Technical Advisor: The episode "Heavy Metal", a spotlight episode for Brains that depicts his stutter waxing and waning when he's under emotional stress, has a "special thanks" credit at the end of the episode for speech impediment specialist Elaine Kelman.
Uncredited Role: The late Peter Dyneley's countdown audio was reused for the opening titles as well as the in-episode launch sequences, but he was uncredited.
You Sound Familiar: Matt Zimmerman, the original voice of Alan, appears as Professor Harold in the episode "Tunnels of Time".
from Macross.