Well, Nyasu was apparently modeled after Muttley from Wacky Races...
And Musashi was largely based on the female Time Bokan villains, who all had a partner who was based off Dick Dastardly.
So there we go!
(well, the Team Rocket trio as a whole were largely based off the Time Bokan villain groups, but Musashi is the only one with a direct equivalent)