Played the snooty \u201cHiggins\u201d opposite Tom Selleck on the popular TV series\u2026 LOS ANGELES (AP) \u2014 A spokeswoman for the family of actor John Hillerman says the co-star of TV's "Magnum, P.I." has died. Hillerman was 84. Spokeswoman Lori De Waal said Hillerman died Thursday at his home in Houston. She said the cause of death has yet to be determined. Hillerman played stuffy Jonathan Higgins to Tom Selleck's free-wheeling private detective Thomas Magnum in the hit 1980s series set in Hawaii. Click to get weekly celebrity death news delivered to your inbox.Hillerman also was known for his 1970s roles as arrogant radio show detective Simon Brimmer on the "Ellery Queen" series, and as a difficult boss on "One Day at a Time." Hillerman appeared in a number of other series, including "Valerie," ''The Love Boat" and "The Betty White Show." His film credits include "The Last Picture Show" and "High Plains Drifter."We invite you to share condolences for John Hillerman in our Guest Book.Copyright \u00a9 2017 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.