Either a mental attack with at least a moderate consequence "Broken Will" or a Social Attack using a Physical attack as a free tag(Horrible Pain!) ending in either a concesion ("Allright, I'll tell you what you want to know") or if you really push it, an extreme consequence (Shattered Will).
Harry held out because Nicklehead BadGuy was using just physical torture. And Harry's got that Endurance apex skill. Had Nic been using a two-pronged approach (against Resolve), he might of pulled it off.
IMO and all that jazz....