Ramis' daughter, Violet, also posted a message to social media.

"Very grateful to everyone who reached out today to offer well-wishes on my dad's deathiversary. Although grief is ever-present, today I am filled with love and appreciation for all he was and the many gifts he gave us," she said via Twitter, which included a video. "Here he is, the way I will always remember him - talking Big Ideas, full of life and laughter, with a twinkle in his eye, and me looking over his shoulder."

It appears Egon's death will play a large plot point in the upcoming film installment Ghostbusters: Afterlife, which was written and is being directed by Jason Reitman.

Most of the main cast from the first two films will reprise their characters in Afterlife, which also stars Paul Rudd, Finn Wolfhard and Mckenna Grace.

The Sony pic is due in theaters July 10.