Randor and Marlena have the same animation models used in He-Man and the Masters of the Universe (1983) but are colored very differently. (Marlena has blue hair!)
The 1980 film "Battle Beyond the Stars", which is a futuristic remake of "The Seven Samurai" and it's 1960 remake "The Magnificent Seven" is considered a major influence behind (#1.1). In the 1980 film, Akir is a peaceful planet that is under threat by the evil Sador and his Malmori mutants and the elderly Akiran warrior Zed sends the farmboy Shad to find mercenaries to help defend Akir from Sador and the Malmori. In (#1.1) Primus is also a peaceful planet which is being threatened by evil mutants led by Flogg. And like the 1980 film, Master Sebrian, the elderly leader of Primus decides to send Hydro and Flipshot to find a warrior to help defend Primus from Flogg and his mutants and on Eternia, the warrior they find to help defend Primus from Flogg and his mutants is He-Man.