Super Mario Bros. movie

[pukunui]

I think we should definitely expect that character to show up in the inevitable sequel. I looked for them in the travel montage earlier and they were notable by their absence from the scene one would have expected to see them.

They did show up in the background at one point.

 

[Whizbang Dustyboots]

They did show up in the background at one point.

If you mean the stream scene, I thought it was relatives of different colors. I didn't see one of the main character's color, which seemed deliberate. I might have missed them, though.