Chris Pratt said he was 'moved by the unbreakable spirit of children' during his visit to London's Great Ormond Street Hospital with Jurassic Park co-star Bryce Dallas Howard.
The Hollywood actor added that it was a 'tremendous pleasure to spend time with patients,' before giving a 'huge shout out to the loving staff' in a series of posts on his Instagram page.
Reposting an image of himself and Dallas Howard with patient Elle - originally shared by Elle's mother Becky - the star added the caption: 'Bryce and I had the tremendous pleasure of spending some time with our new buddy Elle and a few other patients at Great Ormond Street Children's Hospital in London.
'I'll never fail to be moved by the unbreakable spirit of a child. #godisgood Psalm 107:8-9Let them praise the LORD for his loving kindness, for his wonderful deeds to the children of men! For he satisfies the longing soul. He fills the hungry soul with good. No doubt. Today my longing and hungry soul is filled.'
He then shared a group shot including some of the hospital staff, adding the post: 'Huge shout out to the loving staff at the Great Ormand Street Children's Hospital. Thank you for all that you do!!! #angels'
Pratt and Black Mirror star Dallas Howard had been filming the currently untitled Jurassic Park sequel in the capital, before taking a break from their schedule for the visit.
The Guardians of the Galaxy star's son Jack - with actress wife Anna Faris - was premature and weighed just three pounds when he was born.
Speaking about Jack's health now four years on, Pratt recently wrote in an emotional Instagram post marking World Premature Day last year: 'As many of you may know, our son Jack was just over 3 pounds when he was born.
'Thanks to scientific advances made possible by #marchofdimes funding, today he's a perfectly healthy, curious 4 year old.'
Great Ormond Street is one of the world's leading hospitals for children.
Naomi Gordon is news writer mainly covering entertainment news with a focus on celebrity interviews and television.
