Cheers! Famous Faces Toast Actor Nathan Fillion's Birthday

As the Castle star rings in his 43rd year, pals like Joel McHale and yes, Barbra Streisand, turn out to celebrate

SWEET CHARITY

Guests – including Community's Joel McHale and Jim Rash – kick back with Fillion at the bash, which benefited non-profit Kusewera; the birthday boy declined gifts, but let guests donate to the organization throughout the night.