Robin Williams may be going through a tough time – but at least he has
a slew of famous friends to lean on for support.

Williams's wife of 19 years, Marsha Garces Williams, filed for divorce
last week, citing irreconcilable differences.

Since the split, the comedian's License to Wed costar John Krasinski
said they've talked "a bunch of times."

"He's been so supportive of me since the movie and still keeps in
touch," the Office star told PEOPLE Monday night at the L.A. premiere
of his new film, Leatherheads. "That just shows you what a classy guy
he is, to keep tabs on people that he cares about."

So does Williams still have his signature sense of humor during these
difficult times? "Absolutely!" said Krasinski. "Absolutely – if not
better."