Alex Giannini, 'Legend' Actor, Dies at 52

The actor died before a scheduled theater performance on Friday night.

Actor Alex Giannini, who is featured in the film Legend, died on Friday of natural causes, his agent announced on Twitter. He was 52.

Giannini's agent, Felix de Wolfe, tweeted: "The talented and much loved actor @GianniniAlex died suddenly of natural causes yesterday. An incredible life force has left the building."

Giannini died an hour before he was set to take the stage in Mack & Mabel in Plymouth, England, on Friday night. The show was canceled shortly before the curtain was scheduled to rise.

Theater Royal Plymouth addressed the cancellation on their Facebook page saying, "Following last night's announcement we can confirm that all remaining performances of Mack & Mabel will go ahead as scheduled. Thank you to everyone who was affected by last night's cancellation, for your patience and understanding."

Giannini will appear opposite Tom Hardy in Legend ( the film follows notorious British mobsters twins Ronald and Reginald Krayas gangster Antonio Caponigro, aka Tony Bananas. The film opens in theaters on Nov. 20.

The actor played a Spanish officer in Cate Blanchett's Elizabeth: The Golden Age and was featured in the television show Dalziel and Pascoe. Giannini, however, spent most of his career in theater, with credits in Oh What a Lovely War and Batman Live

A representative did not immediately respond to The Hollywood Reporter's request for comment. 

Actors who worked with Giannini throughout his career reacted to his death on Twitter. Read the tweets below.