Chris Hemsworth pens sweet birthday wish for ‘special human’ Robert Downey Jr

Chris Hemsworth on Monday took to Instagram and penned a heartfelt birthday wish for Robert Downey Jr.

The 37-year-old shared series of photos with his Avengers co-star on his 56th birthday and wrote a caption alongside that read as, “Happy birthday to this very special human!”

He added, “Thanks to his mind-blowing creativity and unrivalled leadership we were all able to ride on his coattails through the marvel cinematic universe forever grateful. Love ya mate @robertdowneyjr.”

Hemsworth posted three throwback snaps with the Iron Man star. In one photo, the former can be seen wearing sunglasses while posing with Robert while shooting for a film.

In another photo, both the actors can be seen making silly faces for the picture.