Few characters are as complicated as those built by the mighty brain of Tom Stoppard. Happily, actors as fine as Todd Waite make sure that all that complexity gets translated to the stage. The guiding force of the Alley Theatre's supercharged production of Rock 'n' Roll this past spring, Waite played Jan, a Czech lover of music. As Jan, he created a character who was both intellectually powerful and emotionally tender, a man who wanted to avoid politics even as he stood up for what he believed was right. Best of all, he made us fall in love with Stoppard all over again.