Mary Davis Duncan is known for Jaws 3-D (1983), The Initiation (1984) and Dallas (1978).

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"The Gentlemen" and "Slow Horses" return this fall, while the "Reacher" spin-off series "Neagley" makes its debut. See our guide of the biggest Fall TV and streaming releases.

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Victoria Principal, Barbara Bel Geddes, Patrick Duffy, Larry Hagman, Charlene Tilton, Jim Davis, Linda Gray, and Steve Kanaly in Dallas (1978)

Mary Davis Duncan

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