Rita Wilson to guest star on 'Girls' September 5, 2012 | 5:01 pm Leave a comment The next season of HBO's "Girls" will feature a little more star power. Rita Wilson has been cast on the show -- as Marnie's (Allison Williams) mom. Talk about a great casting move. The new season of "Girls" premieres in early 2013. Sign Up for the Daily E-dition newsletter! Please enter your email address below to begin receiving the Daily E-dition newsletter. You must enter a valid email address in the field above! Thank you for signing up for the Daily E-dition newsletter! You should receive your first newsletter very soon. We're sorry, there was an error processing your newsletter signup. Please click here to visit our Newsletter Signup Center to register for this newsletter.