Chris Hemsworth supports singer Sean Millis despite trolling on social media

Chris Hemsworth has written a heartwarming message to Australian singer Sean Millis to support him in his fight against online trolls.

The Marvel actor has reached out to The Voice Australia contestant, who suffers from a rare genetic disorder called Hunter Syndrome, to encourage him to stay positive in the face of online harassment.

“Hey buddy you’re a champion keep spreading love and positive energy,” Hemsworth wrote in a comment under Millis’ recent Instagram video. “Let me ask you this: How many of these people who throw hurtful comments at you have you ever met in person? I bet not many! Because most of them are hiding under a rock or have a blocked account with all the other cowards who are afraid to ever be vulnerable and show themselves because they’re scared of being rejected themselves, so they attack the world before it attacks them. What a lonely existence that must be.”

The 40-year-old actor encouraged his fellow Australian to focus on the opinions of people who know him personally.

“Don’t even look at that fool, buddy, don’t even give them that satisfaction,” he instructed. “The only comments you have to value are those from people who love and support you, brother, and most importantly, your own opinion of yourself, which I know is filled with appreciation and gratitude for spending time with you.”

The “Thor” star praised Millis, 22, for remaining optimistic despite all the trolling and went on to talk about the benefits of being kind to others.

“Did you know that by performing a simple act of kindness, we can positively change our brains by increasing serotonin and dopamine levels,” he wrote. “The recipient of a kind act gets a boost of oxytocin, dopamine and serotonin, as does the observer of that act! A pretty simple formula for a happy life, but sometimes we really complicate it.”

Hemsworth praised Millis and concluded: “You, my friend, are an incredibly kind soul and I thank you for that. Keep up the good work!”