Teller (the silent one) is the person who turned Penn onto libertarianism. Betcha they’re big Ayn Rand fans. Atheist, small government, leave me alone etc.
I bet they turned from liberals to libertarians the minute they started making real money and saw their first income tax totals. That’s generally how it works in the average Hollywood liberal’s journey from left to (somewhat) right. Other recent examples - Jon Lovitz and Will Smith.