Attended The University of Texas at Austin.
Reports of the death of Mr. Hillerman were confused with the death of another John Hillerman. This Mr. Hillerman is alive and well. [1996]
Has appeared as the character "Jonathan Higgins" in four separate television shows: "Magnum, P.I." (1980), "Simon & Simon" (1981), "Murder, She Wrote" (1984), and "Quantum Leap" (1989).
He is a native Texan, thus his British accent in "Magnum, P.I." (1980) is fake.
He developed his British accent for "Magnum, P.I." (1980) by watching and listening to the performances of Laurence Olivier.
Once received a fan letter from a British Lord that read, "You are a credit to the Empire.".
on "Magnum, P.I." (1980) co-star Tom Selleck: "The biggest boy scout in America."
(2000) Retired in Texas.
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