Jerry Doyle, Babylon 5’s security chief Michael Garibaldi, has died.
The actor’s Twitter account posted the news Thursday; the update did not include the cause of death.
TMZ reports that the actor was found unresponsive at his Las Vegas home on Wednesday, and that no foul play is suspected.
Doyle’s nearly 30-year career found him appearing on several TV series, including Moonlighting; Beverly Hills, 90210; JAG and NYPD Blue. But Garibaldi was Doyle’s most notable part, and one he played for the sci-fi series’ five-season run, as well as in TV movies related to the drama.