20 Poignant Reactions to Robin Williams's Passing

Mandy Moore and John Krasinski starred with Robin Williams in License to Wed. They expressed their grief separately on Twitter:

Honored to have worked w such a bright light and brilliant man. Love and prayers to his family and friends. #RIPRobinWilliams

— Mandy Moore (@TheMandyMoore) August 11, 2014

To the kindest hearted man. Robin, know you will always be remembered by smiles, laughter and love. Thank you. Thank you. Thank you.

— John Krasinski (@johnkrasinski) August 12, 2014