'Hamilton' Star Leslie Odom Jr. and Wife Nicolette Robinson Expecting First Child

Getty Images

Tony Award-winning Hamilton star
Leslie Odom Jr. is going to be a dad!

Odom Jr. and his wife, actress Nicolette Robinson, announced in an Instagram post on Monday that they are expecting their first child.

"One of the greatest gifts we could ever ask for," Robinson wrote alongside a snapshot of the happy couple sitting in front of gold "Baby" balloons. "Leslie and I are so excited to share the news that we have a sweet baby on the way."

WATCH: They're Having a Baby! Hollywood's Best Celeb Pregnancy Announcements!

Odom, 35, shared a similar photo of himself and his beaming wife, which he captioned with a letter to his forthcoming progeny: "Little one, you're on our mind all the time. Keep eating and growing! We love you and we're already so proud of you! Love, your mom and dad."

Odom, best known for playing Aaron Burr in the Broadway production of Hamilton, tied the knot with the 28-year-old The Affair actress in December 2012.

Congrats to the happy couple!

WATCH: 'Hamilton' Stars 'Proud' of Broadway Diversity After All 4 Musical Acting Tonys Won by People of Color