Since the creative team did not want the X-Men to have an all-male lineup, editor Roy Thomas suggested that Cockrum make his character Typhoon, originally designed as a male, into the woman of the group. Cockrum liked the idea and outfitted Typhoon with The Black Cat's costume, a cape, and a new haircut with white hair. His collaborators feared that Storm's white hair would make her look like a grandmother, but Cockrum, confident that he could consistently draw the character so that she would appear young, insisted on this aspect of her appearance.