Agatha All Along might've had two of its biggest mysteries spoiled, and it's all thanks to a toy release. As readers stream the MCU's latest miniseries and wonder about the identities of Rio Vidal and the teen who had a spell cast on him, Funko accidentally let slip the big details of who they are.

Agatha All Along's biggest spoilers have leaked early, all thanks to a Funko pop. Be warned, MAJOR spoilers for Agatha All Along follow. Turn back now if you don't want to know more. A listing for Marvel's new Agatha All Along range of Funko Pop figures has confirmed exactly who Joe Locke's 'Teen' and Aubrey Plaza's mysterious character (currently known as Rio Vidal) are.

The identity of Agatha All Along's Teen is one of the show's biggest secrets - and he may be this little-known Marvel character.

Not only can he travel between realms, but he also changes his physical form. He can appear as a normal investor to manipulate Norman Obsorn or appear as a snake to corrupt the minds of Adam and Eve. In his actual form, Mephisto appears as Satan, but it’s hard to say if that’s his true form.

One of the biggest questions about Agatha All Along is the identity of Locke's spooky Teen. Even a powerful witch like Agatha Harkness is unable to break the spell to discover if he's someone she can trust. His identity is like a big secret for Marvel fans curious about the character and Agatha's journey.

Our long national extra-dimensional Hell nightmare is over. After years of anticipation, speculation, and frustration, the MCU has finally confirmed that Mephisto exists in its cinematic universe.