Thread:Shabook/@comment-25521424-20180128174716/@comment-112155-20180128180202

It's more a case by case basis than a general rule, a few things need to be considered.

For example, Marvel, and especially Agents of S.H.I.E.L.D. tends to acknowledge the original creators of comics characters in the "Special Thanks" of the episode. Quake and Mack's creators are there for every episode BTW.

However, rights for old Patsy Walker comics do not lie with Marvel TV per se, at least publicly, so characters appearing in those comics are seemingly off-limits. Patsy herself and her mom are different because they both appeared in true Marvel comics.