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.

Daniel Radcliffe, Emma Watson and more members of the Harry Potter cast are mourning costar Dame Maggie Smith, who died at age 89 on Friday. While audiences remember Radcliffe, now 35, as The Boy Who Lived and Smith as Professor Minerva McGonagall in the eight-film series,

The cast members of the Harry Potter film franchise paid tribute to Dame Maggie Smith who passed away on September 27.

Daniel Radcliffe recounted the first time he saw Dame Maggie Smith, his co-star in David Copperfield, when he was just nine years old.

Daniel Radcliffe paid tribute today to his Harry Potter costar Maggie Smith, who died this morning at the age of 89. The two actors actually met on a job prior to the Potter franchise, when both were cast in a 1999 BBC adaptation of David Copperfield.

Tributes quickly began to pour in after the death of "Downton Abbey" and "Harry Potter" actress Maggie Smith. Smith died "peacefully" in her sleep Friday.

The actors behind Sirius Black, Ginny Weasley, Seamus Finnigan, Fred Weasley, Padma Patil, and Harry Potter himself shared fond memories of the late actress.

Daniel Radcliffe is paying tribute to the late Maggie Smith, who died at 89 years old. The two actors are veterans of the “Harry Potter” film franchise. Radcliffe starred in the title role of all eight movies,

Related: Maggie Smith, two-time Oscar-winning Harry Potter and Downton Abbey actress, dies at 89. Radcliffe said that he was only aware of her status as a Dame, which she received