Well, a friend of mine ran a few Kingdom Hearts D&D sessions and in it, my character is one of the
101 Dalmatian Street Puppies who found the Mask of
Zen-Aku (Power Rangers Wild Force was made under the Disney banner) and is now working for Madam Webb. Who he's working for can be changed, but i really enjoy playing him, because of the split personality. Going from dark and broody Zen-Aku, to literal puppy in a humanoid body who's just really happy to meet people and be their friend.
The other character i have a few idea's for, but i ran another Kingdom Hearts D&D campaign for about 4 years and i had a lot of fun with some recurring characters. Way i handled Star Wars and Marvel stuff was to treat them much like the game treated Final Fantasy characters, where they were always part of specific worlds (The Mandalorian showing up to try and capture Stitch in Lilo & Stitch world, Tony Stark being one of the financiers of the San Fransokyo Institute of Technology, Rocket and Groot being the mercenaries that Queen Grimhilde hires to track down Snow White with SW managing to brainwash Rocket with her magic animal-control singing, etc.) One that i had a lot of fun with was a long running plot of
Karre from Star Wars Visions "The Twins" being an ally with Am trying to lure him back into Maleficents service, with him trying to rescue her. I'd kinda love to team these two up.
Also, if you want, i can send you some of the plot points i had for the campaign i ran, people seemed to enjoy the story well enough. Might help give you idea's for ways things can go.