Plus, actor Sean Biggerstaff remembers his 20-year friendship with Snape himself.
Always.
Years after Harry Potter fans mourned the loss of Severus Snape, they have united once more to poignantly honor the man who played the one-time Hogwarts professor, Alan Rickman, who died on Thursday at the age of 69.
That same day, fans raised their wands in tribute to the beloved British actor at the Wizarding World of Harry Potter in Orlando, Florida:
The tribute was organized by Diversely Geek, who wrote on Facebook, "This world and his fandom has been left a legacy of kindness, humor, wit, joy, self-confidence, unconditional acceptance and pure positivity. Let's aspire to be as gentle as this giant and leave happiness and laughter as our legacies."
WATCH: Emma Thompson, Helen Mirren and More Pay Tribute to Rickman
Other fans left flowers outside of Snape's door at the theme park:
Including, most emotionally, a lily outside of his potions classroom:
Across the pond, fans transformed Platform 9 3/4th at King's Cross station in London into a memorial, including flowers, photographs, and notes.
"So much love for our Snape," one fan tweeted.
WATCH: From 'Die Hard' to 'Harry Potter,' Alan Rickman's Most Memorable Roles
Meanwhile, actor Sean Biggerstaff, who played Oliver Wood in the first two Harry Potter movies, posted a touching remembrance of his friendship with Rickman.
"I don't know what I did to deserve a friend like Alan," he tweeted. "He looked out for me for twenty years and I loved him. I don't know what to do now."
Alan Rickman
Read: https://t.co/Ygi55FLplm
— Sean Biggerstaff (@Seanchuckle) January 14, 2016Biggerstaff, who first met the Golden Globe winner when he was 11, wrote, "He was our fairy Godfather. He was the whisper in the right ear at the right time. He was the reassuring message when he sensed, always correctly, that we needed it most. He was new head shots or carpets or travel money when times were tough...He was the most generous, wise, supportive, talented, charismatic, empathetic person I think I’ve ever known."
Rickman's other Harry Potter costars, including Daniel Radcliffe and Emma Watson, have opened up about their time with the actor. Radcliffe called him "undoubtedly one of the greatest actors I will ever work with." Hear the rest of their memories below: