Answer:

STILLER

Answer	Crossword Clue
STILLER	More hushed
STILLER	"Meet the Fockers" costar
STILLER	2009 MTV Generation Award winner

STILLER	He played Mr. Costanza
STILLER	Meara's partner
STILLER	Less active
STILLER	"Meet the Parents" star
STILLER	Leader of the Frat Pack
STILLER	Elfman's "Keeping the Faith" co-star
STILLER	Not so noisy.
STILLER	Partner of Meara

STILLER	Meara's husband
STILLER	Meara's mate
STILLER	Comedian Jerry
STILLER	Not moving so much
STILLER	"Tropic Thunder" director and co-star
STILLER	Ben of "Zoolander"
STILLER	Frat Pack member Ben
STILLER	Meara's partner in comedy

STILLER	Not as noisy
STILLER	Ben of "There's Something About Mary"