Glover Park Group is representing AMC Networks, the cable programmer of high-quality, original content that is the target of takeover speculation.

Cablevision Systems completed the spin-off of AMC in 2011, though the founding Dolan family of the cable operator still controls voting rights of AMC.

AMC, which produces shows such as “Mad Men,”  “The Walking Deal” (zombie hit) and “Breaking Bad,” ranked as the nation’s No. 14th in February, according to Nielsen. Its channels include AFC, IFC, Sundance Channel and We tv.

Bloomberg reported Feb. 14 that an AMC takeover by Comcast, News Corp., CBS or Walt Disney Co. would provide the programmer more leverage in negotiating fees with distributors.

AMC’s stock currently trades at $58.75. The 52-range is $61.32 and $34.78.

GPG’s Gregg Rothschild (former staffer on the House Energy and Commerce Committee), Susan Brophy (former chief of staff for Democratic Senators Tim Wirth and Bryron Dorgan), Brian Gaston, who worked under key Republicans such as Speaker John Boehner and ex-Majority Leader Dick Armey) and Matt Mandel (one-time staffer to current Majority Leader Eric Cantor) work the AMC business.

WPP owns GPG.