updated 01/16/2012 AT 1:00 PM ET
•originally published 01/16/2012 AT 3:45 PM ET
“I sort of gave her a little grief,” the proud new papa, 42, told reporters on Sunday at the HBO afterparty in Beverly Hills.
“Everybody is very busy, but it takes [this awards show] to get together.”
All jokes aside, Dinklage has nothing but love for his former Station Agent costar, 31, who picked up a Globe for her work in My Week with Marilyn.
“We became friends,” he said of first meeting Williams in 2003. “She is one of my favorite actresses and she deserves everything she is getting.”