A suave, handsome Hitchcock hero in The 39 Steps; the harassed playwright-carpenter Peter Quince in A Midsummer Night's Dream; Adam, a self-effacing academic, in Mariela in the Desert; a brilliant and famous London playwright watching his life spiral out of control in Tom Stoppard's The Real Thing: Sam Gregory is nothing if not versatile, as he showed in the Denver Center Theatre Company's most recent season. Understated, often sardonic, he's one of those skilled actors who knows when to focus attention on himself and when to cede it to others, and who will fit himself into a role rather than twist every role to fit his own persona.