When I talked about Total Recall and TNG casting I forgot about this guy - Roy Brocksmith - who played the Doctor with the Telltale Bead of Sweat. 

TNG RewatchPeak PerformanceRoy BrocksmithSirna KolarmiOh and Benny from Total Recall was also the Legate that replaces Damar at the end of the series that Weyoun has executed