You can even see that with Stan Lee and Jack Kirby's original "X-Men" comics. The first handful of issues focus on the X-Men ...
The Animated Series auditioned for the live-action film, but he wasn't interested in the character they had in mind.
For the team behind X-Men: The Animated Series, it was crucial that Jubilee was a part of the team because she could serve as the audience surrogate.
Stan Lee was tricked into going against a Marvel mandate for X-Men: The Animated Series, and the ruse has saved the series.