‘Voiceover King’ Don LaFontaine died unexpectedly Monday at the age of 68 from Pneumothorax.  LaFontaine is survived by his actress wife, Nita Whitaker.

A 25-year veteran of the industry, LaFontaine was the preeminent voice of movie trailers, and also voiced popular shows like Entertainment Tonight, the Insider and hundreds of spots for radio and television. His other work included commercials for McDonalds, Budweiser and voiceover work for all the major television networks. According to reports, he worked on nearly 5,000 films – and was the in-show announcer for the Screen Actors Guild and Academy Awards.

The official cause of death has yet to be determined but LaFontaine’s agent told Entertainment Tonight that Pneumothorax, which is when air or gas gets in the pleural cavity around the lungs, is how LaFontaine died.