Elizabeth Olsen doesn’t only wear her heart on her sleeve in WandaVision and Doctor Strange in the Multiverse of Madness. In real life, the 33-year-old actress is also open about her feelings and now, she wants to empower kids to speak up about their emotions too.

Ahead of the Doctor Strange sequel’s premiere, Elizabeth stopped by The Tonight Show Starring Jimmy Fallon to discuss the latest development of her character Wanda Maximoff. But she was quickly surprised by host Jimmy Fallon bringing up another passion project. As it turns out, Elizabeth and her husband, Milo Greene lead singer Robbie Arnett, wrote a children’s book called Hattie Harmony: Worry Detective.

“My husband and I wrote a children’s book, which I didn’t know I was going to talk about tonight but how great,” she said on the show. “This was a project that we came up with during COVID lockdown and trying to figure out what positive stuff to put out in the world, how to affect kids in a positive way.”

Elizabeth continued: “I love talking about my feelings in therapy, so she’s a worry detective and she helps her friends at school identify their feelings … She gives them tools to help deal with their worries and their anxieties.”

Hattie Harmony: Worry Detective will hit bookshelves on June 28, just in time for kids to grab before kicking off their summer vacation. The Marvel Cinematic Universe star also revealed that Robbie was behind Hattie’s name and the duo has more heartfelt stories on the way. “It’s a book series I’m really excited about … We will [have a second one] next year,” she said.

Hattie Harmony: Worry Detective

Hattie Harmony: Worry Detective

The married couple first announced their joint project back in December. “When we sat down to write Hattie Harmony, our goal was to create a relatable character who made talking about complicated feelings fun and engaging for kids," the two said in a statement. “We hope Hattie Harmony will become a welcomed reminder that it's okay to speak up when we need help and to always treat ourselves and others with kindness."

According to the children’s picture book description, Hattie will help her friends deal with back-to-school nerves caused by taking the bus and speaking in front of the class. But Hattie will also have to overcome her own fears.

As fans may know, Elizabeth and Robbie were first spotted together in March 2017. More than two years later, news broke that the pair had gotten engaged in July 2019. A source revealed that the actress and musician had been dating for three years at that point. In June 2021, Elizabeth subtly shared that Robbie was now her husband. Just like the MCU actress, Robbie prefers to keep their relationship offline, except for the promotion of Hattie, of course.

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Selena Barrientos
Entertainment & News Editor

Selena is the entertainment and news editor for Good Housekeeping, where she covers the latest on TV, movies and celebrities. In addition to writing and editing entertainment news, she also spotlights the Hispanic and Latinx community through her work. She is a graduate of CUNY Hunter College with a B.A. in journalism and creative writing.