As messages of love to British actor Alan Rickman come pouring in from those who knew him and admired his work after his death on Thursday, Daniel Radcliffe's tribute to his Harry Potter co-star has to be the sweetest. "Alan Rickman is undoubtedly one of the greatest actors I will ever work with," Daniel shared on Google+ Thursday. "He is also, one of the loyalest and most supportive people I've ever met in the film industry. He was so encouraging of me both on set and in the years post-Potter. I'm pretty sure he came and saw everything I ever did on stage both in London and New York. He didn't have to do that."
Though Alan was best known for playing characters with a dark side, such as Severus Snape in the Harry Potter film series and Hans Gruber in Die Hard, Daniel said the late actor was nothing like the people he portrayed on screen. "People create perceptions of actors based on the parts they played so it might surprise some people to learn that contrary to some of the sterner (or downright scary) characters he played, Alan was extremely kind, generous, self-deprecating and funny," he wrote. "Certain things obviously became even funnier when delivered in his unmistakable double-bass."
Daniel said his time acting opposite Alan will stick with him long after he is gone. "As an actor he was one of the first of the adults on Potter to treat me like a peer rather than a child. Working with him at such a formative age was incredibly important and I will carry the lessons he taught me for the rest of my life and career," Daniel wrote. "Film sets and theatre stages are all far poorer for the loss of this great actor and man."
Daniel also shared one of his fondest memories of Alan on the set of one of the Harry Potter films.
Harry Potter author J.K. Rowling also shared a touching tribute to Alan on Twitter Thursday. "There are no words to express how shocked and devastated I am to hear of Alan Rickman's death. He was a magnificent actor & a wonderful man," she tweeted.
Watch Daniel discuss the upcoming Harry Potter play on Watch What Happens Live in November 2015, below.