Amanda Righetti Expecting First Child

There’s a baby on the way for Amanda Righetti.

The Mentalist star, 29, is expecting her first child with her husband of six years, producer/director Jordan Alan, her rep confirms to PEOPLE.

The baby is due this winter.

“She is very excited and feeling great,” a friend tells PEOPLE. “They are going to keep the gender of the baby a surprise!”

In addition to her current role as Grace on the CBS show, Righetti is also known for her work on Reunion and The O.C., as well as roles in Friday the 13th and Captain America: The First Avenger.

“Thank you all for the congratulatory well wishes,” she wrote on Twitter. “[Jordan] and I are very excited and looking forward to this new chapter in our lives.”

— Sarah Michaud with reporting by Liza Hamm