10 Unusual Demands Made By MCU Actors

Perhaps the single greatest thing about WandaVision is that it introduced the great Kathryn Hahn to a whole new audience of fans. Hahn of course played the deliciously villainous witch Agatha Harkness, and made one hilariously particular demand while shooting her scenes.

The character is perhaps best remembered for her song "Agatha All Along," which she sings while revealing her villainous identity to Wanda (Elisabeth Olsen.

However, originally it was up in the air as to whether Hahn would actually sing the song herself, at which point the actress insisted that nobody else would sing it for her. She said:

"I put headphones on, listened to it and stared slack-jawed at [director] Matt, who was looking at me with such a grin... I got asked about singing it and I said they'd have to pry it out of my hands - there's no way anybody else was singing it!"

And like that, an iconic MCU moment was born, the popularity of which surely aided Marvel Studios in greenlighting an Agatha spin-off series, Agatha: House of Harkness.