"Cobra Kai" is a show with an absolutely massive ensemble cast. Sure, there are a few key characters that the Netflix series follows quite religiously -- mainly "The Karate Kid" holdovers Daniel Larusso (Ralph Macchio) and Johnny Lawrence (William Zabka), as well as various close associates, family members, and sworn enemies that trickle in over time. However, as new kids join the assorted dojos and old characters from the franchise return, there are soon dozens of named characters crane kicking each other around the San Fernando Valley. 

With so many people in the mix, it's only natural for the occasional combatant to drop entirely out of the picture. Take Aisha Robinson (Nichole Brown), who's a "Cobra Kai" mainstay for the show's early episodes, but moves out of the neighborhood after the big school fight near the end of the sophomore season. As major "Cobra Kai" character Samantha Larusso's (Mary Mouser) best friend,...