“Harry Potter” stars Jason Issacs (Lucius Malfoy) and Bonnie Wright (Ginny Weasley) got emotional during a Salt Lake City FanX panel on Saturday afternoon as they recounted their favorite memories of the late Maggie Smith, who starred alongside them in the “Harry Potter” movies as Professor McGonagall.

Radcliffe, for instance, remembers working with Smith before being cast in Harry Potter, having met her on the set of the BBC’s adaptation of David Copperfield when he was all of 9. Here’s his extended statement about her,

A grand star of screen and stage has departed. Maggie Smith, known most recently for her unforgettable roles as the Dowager Countess in Downton Abbey and as Professor McGonagall in the Harry Potter films, passed away at age 89. Fans both old and young shall miss her dearly.