Anyone else think Nathan Fillion is a looker? Got hooked on him during his "Firefly" days (where he picked up the "Capt. Tightpants" handle) and then in "Serenity" and "Desperate Housewives." He's starring in a new ABC series, "Castle," which debuts next month...and let's hope this one lasts longer than several of his other projects. Always thought the guy was probably gay (or celebate) since he's in his mid-30's and never seems to be linked with anyone--male or female. Or maybe he just keeps his relationships on the DL, which would be so un-Hollywood of him. If you're not a fan, here are some pics to refresh your memory.