Sarah Wayne Callies, who stars on Fox's "Prison Break," is expecting her first child, her spokeswoman said Tuesday. The baby is due in late summer, publicist Jodi Gottlieb told The Associated Press.

Gottlieb declined to provide further details, including the occupation of Callie's husband, Josh Winterhalt.

Callies, 29, portrays Dr. Sara Tancredi on "Prison Break." New Corp.'s Fox network drama also stars Wentworth Miller and Dominic Purcell.

She has guest-starred on TV's "Law & Order: Special Victims Unit" and "Numb3rs," and as Jane in the short-lived series "Tarzan."