Actors across generations paid tribute today to Harold Ramis, the mind behind iconic films like Caddyshack, Vacation and Ghostbusters.

Ramis, who died after a battle with a rare autoimmune-related disease, created a body of work that influenced his peers and current comedians alike. A running theme in the following online tributes, though, was about Ramis’s big heart, not just his outsized talents.

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