The 24 actress, 33, gave birth to her first child with husband Stephen Full Sunday at 4:46 PM in Los Angeles.
Baby Freddie (middle name: Wersching) Full, who weighs 7 lbs., 15 oz., and is 18 inches long, is quite the stunner and shares mom's hair. "He has a full head of hair and is very calm and sweet and adorable," Wersching tells PEOPLE exclusively. "We are all feeling great!"
Wersching, who played agent Renee Walker opposite Kiefer Sutherland on the Fox show, debuted her baby bump in May at the series finale party in Los Angeles.
The actress and Full, an actor and comedian of Disney's I'm in the Band fame, married at their Los Angeles home in September 2009.