Hollywood stars Chris Hemsworth and Tom Hiddleston have brightened the days of sick kids at Brisbane’s Lady Cilento Children’s Hospital by paying them a surprise visit.

In town for the filming of Thor: Ragnarok, Hemsworth and Hiddleston brought smiles to the faces of young patients and appeared on the Children’s Hospital Foundation’s JuicedTV broadcast.

The stars reportedly met more than 80 children and their families.

“Met the real superheroes of the world at Lady Cilento Children’s Hospital,” Hemsworth wrote on Instagram. “A huge shout-out to all the brave kids who are an inspiration to all of us!”

Proving that they are mightier than the likes of Captain America, Iron Man, Hawkeye, War Machine and even The Incredible Hulk, a number of the brave kids managed to lift Thor’s magical hammer, Mjolnir.

The stars may have gotten the idea from Hiddleston’s girlfriend, pop superstar Taylor Swift, who visited the kids when she was in town last month.