WandaVision: Agnes' Comment About Sparky Means More Than You Realize

Contains spoilers for WandaVision episode 5

Viewers have been clued in to the imminent arrival of the very important Sparky for a while. The pup with a heart of gold and an appetite for toxic horticulture was first hinted at in a teaser for WandaVision, where his entirely appropriate name could be spotted on his doghouse. Since then, fans have been working overtime, speculating as to how the little fella might mosey his way into Westview and inevitably perish shortly thereafter.

In episode 5, we finally got our first glimpse at the adorable mutt, courtesy of an appropriately cute-as-a-button '80s sitcom setup. During his brief tenure as a member of the Vision residence, he paws his way into audiences' hearts, then serves as an on-the-nose reminder that you can't just bring dead things back to life — even if that lesson doesn't extend to dead Fox film franchises, apparently.

Before Tommy and Billy (Gavin Borders and Baylen Bieliz) get the go-ahead to raise young Sparky as their own, however, their folks agree that they're not old enough to have a dog, and land on ten as an appropriate age to shoulder that responsibility. Helpfully, the twins then Animorph into fifth graders. "Let's just hope this dog stays the same size," quips Agnes.

A throwaway line to end the scene on a wacky note? Maybe. Or maybe it's one of the seemingly tens of thousands of Easter eggs that WandaVision just won't stop hiding in plain sight.

First, consider Agnes (Kathryn Hahn): the character that just keeps giving WandaVision fans a suspicious feeling. The prominent theory is that she's actually one Agatha Harkness, nanny to Franklin Richards of the Fantastic Four and a centuries-old sorcerer who taught Wanda (Elizabeth Olsen) how to harness her magical abilities. If Agnes and Agatha are one in the same, she'd definitely be the authority on animals changing size; in the comics, she's accompanied by a house cat familiar named Ebony who has a habit of turning into an enormous wildcat. Coincidentally, Ebony dies in the comics after eating some the plot-laden leaves of the Everbloom plant, not unlike the way Sparky meets his end in episode 5 of WandaVision.

Alternatively, Agnes' comment could have just been an allusion to Sparky's comic book backstory. In Tom King's The Vision miniseries, Sparky starts life as another short-lived pooch, one who also meets his end thanks to the shady dealings of Vision's significant other. In this instance, the pup gets a new body courtesy of Vision, who implants the deceased animal's brain patterns onto the mind of a factory-fresh synthezoid dog who, fair warning, prospective readers also shouldn't get too attached to.

Only time will tell what Agnes' dialogue has been alluding to, but as we delve deeper into WandaVision's back half, it seems clear that fans can't take any line for granted.