- Hey, It's That Voice!: In "The New Adventures of Flash Gordon" (1979-1980) by Filmation, Flash Gordon himself was voiced by Robert Ridgely. Who is also known to fans for playing Tarzan, Thundarr the Barbarian, Kraven the Hunter, General Thaddeus "Thunderbolt" Ross, and Rex Charger.
- Dale Arden was voiced by Diane Pershing. Who also played Pearl Pureheart, Crystal Kane, Netossa and Spinnerella, and Poison Ivy/Pamela Isley.
- Ming the Merciless was voiced by Alan Oppenheimer. Who also played Mighty Mouse, Battle Cat/Cringer, Man-At-Arms/Duncan, Skeletor, Mer-Man, Beachcomber, Seaspray, Warpath, Professor Amadeus Sharp, Vanity Smurf, Jonathan Kent, Uatu the Watcher, and Firelord.
- Princess Aura was voiced by Melendy Britt. Who also played Batgirl/Barbara Gordon, Catwoman, She-Ra/Princess Adora and Catra.
- What Could Have Been: George Lucas tried to get the rights to Flash Gordon to make his own movie. When blocked by Dino DeLaurentiis, Lucas decided to make his own space adventure series.
- Americans Hate Tingle: The movie didn't do great in the US, but it was a mega hit in Great Britain. So much so that it's considered a classic there.
- Beam Me Up, Scotty!: Ming never actually says "Pathetic earthlings, who will save you now?" Except in the trailer.
- Ming does say "Pathetic earthlings", a lot. (ie. "Pathetic earthlings, hurling yourself out into the void...")
- Doing It for the Art: Playing Vultan was BRIAN BLESSED's lifelong dream.
- Hey, It's That Guy!: Yes, it's an All-Star Cast (including BRIAN BLESSED), but Deep Roy is Aura's valet and Riff-Raff is Barin's dragon Fico.note
- Promoted Fanboy: BRIAN BLESSED has admitted in interviews that when he and his brother used to play a game based on the TV series he always wanted to be Vultan. Decades later he got to play the same childhood game on the big screen.
- Stillborn Franchise: The actors signed up for a trilogy of films a la Star Wars, and there was a spinoff children's TV show.
- Throw It In: Flash jumping into the camera screaming "YEAH!" was an improvisation by Sam Jones, as nobody could figure out how to end the movie.
- Vindicated by Cable
- What Could Have Been: All actors were signed for three movies, but problems with star Sam J. Jones during post-production (which led to Same Language Dub) pretty much killed the trilogy.
The 2007 series:
- Hey, It's That Guy!: