The couple are expecting their second child sometime before the end of summer, E! News reports.
Williams and Drake-Lee tied the knot in September 2012, and they welcomed their first child, a daughter named Sadie, in December 2013.
According to a source that spoke to E!, the 33-year-old Cabin in the Woods actor and his wife, a real estate broker, are "really excited and this was something they really wanted."
Congrats to the happy couple!
For more spectacular pregnancy announcements check out the video below for a look at some of the greatest celeb baby announcements ever.