Next Friday, the malevolent Dr. Blowhole returns to battle the Penguins, as Nickelodeon kicks off a new hour-long animated special The Penguins of Madagascar: Blowhole Strikes Back. Featuring the voice of Neil Patrick Harris, the Penguins versus Dr. Blowhole special will kick off at 8pm on Friday, September 9th, only on Nickelodeon. NPH will perform four new songs in the Penguins Movie Event, for even the penguins will note that he does have a surprisingly nice voice …for villainous scum. The special will also feature the voices of Andy Richter and Tom McGrath as Mort and Skipper. Want more? Check out these screen shots!