Maybe the names Tom Sawyer or Becky Thatcher will get some love this time around.

Actress Kimberly Williams-Paisley and country star Brad Paisley, who named their son after Mark Twain's scamp Huckleberry Finn, have another little character on the way, reports People.

"We're having so much fun with our little boy Huck, and we are thrilled that he will have a sibling," says the "According to Jim" star. "He's going to be a great brother."

The couple's first child is named William Huckleberry Paisley and was born in February 2007 in Nashville, Tenn. The next child is due in April.

The couple wed in March 2003. Paisley, 35, was inspired to write the song "Little Moments" about their relationship. The Grammy winner and Carrie Underwood will co-host the 42nd annual Country Music Association Awards in Nashville on Nov. 12.

Williams-Paisley, 37, is shooting the next season of "According to Jim," which is planned to premiere sometime in 2009. Her breakout role was as the blushing daughter in the 1991 big-screen remake of "Father of the Bride." Her other films include "Father of the Bride II" and "We Are Marshall."