The Thor star posted an Instagram video of himself and a friend picking up US musician Scott Hildebrand in Brisbane, who had just arrived from Mexico.
"Picked up a hitchhiker, wasn't a serial killer which we were stoked about," Hemsworth wrote.
One commenter on the post branded Hemsworth a "true Aussie champion" for his hospitality.
Hemsworth and his friend Luke Zocchi spotted the musician after arriving in the eastern city of Brisbane, and decided to offer him a lift.
"Little does he know we're getting a chopper," Zocchi says.