Maureen McCormick, known to millions of baby boomers as the effervescent Marcia Brady, has been inked to play the title role in “The Barbara Mandrell Story,” a telefilm for CBS. The deal continues a resurgence in McCormick’s acting career following a 10-year absence.McCormick will play the 49-year-old Mandrell from her teenage years through adulthood. Telefilm vet Jerry London will direct the two-hour offering, to be produced by Peter Guber’s Mandalay Entertainment banner. Story will cover the rise of the award-winning entertainer, including Mandrell’s return to performing after recovering from a near-fatal car accident in 1984. McCormick, who has a pivotal role as Didi in the new George Hickenlooper film “Dogtown,” has also tried her hand at singing, launching a country music recording career during her absence from TV. It was the Music City presence that alerted telefilm guest stars Kenny Rogers, Reba McEntire and Dolly Parton — who will play themselves in the Mandrell pic — to McCormick’s singing acumen. McCormick is also taping a pilot dubbed “Teen Angel” this week, a Walt Disney/ABC offering being directed by Andy Cadiff. If the show is ordered, it could be positioned as a Friday night schedule companion for “Sabrina the Teenage Witch.” McCormick’s music may get a new airing, as Hickenlooper is trying to secure the rights to a trio of tunes from McCormick’s indie-released disc to feature in “Dogtown,” according to McCormick’s manager, Mark Teitelbaum, of Somers, Teitelbaum & David. Teitelbaum and Pamela Cole at Buchwald & Associates closed the Mandrell pact late Thursday.