Home Alone actor Devin Ratray has reacted to costar Catherine O'Hara's death at age 71. "One of the greatest people I ever met," Ratray, 49, who played O'Hara's onscreen son Buzz McCallister, wrote over a throwback photo of the pair via Instagram on Friday, January 30. O'Hara 's death at her home in Los Angeles on Friday came "after a brief illness," according to a statement from her agency, Creative Artists Agency. A cause of death is not yet known. Catherine O'Hara Attended Emmy Awards 4 Months Before Her Death at 71 TMZ was first to report the news.