Intense character actor Terry O’Quinn made a 30-year career from playing men of determination – his lengthy c.v. of film and television roles was dotted with law officers, military men, captains of business like Howard Hughes, and other serious figures. Occasionally, that central determination was applied in the wrong direction, most notably as a psychopath obsessed with the notion of a perfect family in “The Stepfather” (1987), or the reasoning behind it was difficult to fathom, as in the case of his Emmy-winning role as castaway John Locke on “Lost” (ABC, 2004-). But in every case, O’Quinn’s