Peter Dinklage and his wife are expecting their second child.

The 'Game of Thrones' actor and Erica Schmidt will welcome a sibling for five-year-old daughter Zelig into the world later this year, a source confirmed to People magazine.

The couple - who married in 2012 - attended the opening night of 'All the Fine Boys', an off-Broadway show which Erica, 41, wrote and directed, on Wednesday (01.03.17) and posed for photos in which the playwright's bump could be seen in her ankle-length dress.

And in other images, the cast of the production - which includes Isabelle Fuhrman and Abigail Breslin - surrounded their director and placed their hands on her stomach.

In 2011, shortly before their daughter's birth, the 47-year-old actor paid tribute to his wife during his acceptance speech when he picked up the Emmy for Outstanding Supporting Actor in a Drama Series for his portrayal of Tyrion Lannister in 'Game of Thrones'.

He said: ''I love you, Erica. You're amazing.''

And the following year, the couple had one of their first nights out since becoming parents at the Golden Globe awards.

Speaking at the time, Peter laughed: ''Everything's fine -- so far. She's a baby. Crying never killed anyone. Well, maybe that's not true.''

Peter will reprise his popular 'Game of Thrones' role for the seventh season when the fantasy drama series returns later this year, though a premiere date hasn't yet been set.