 On November 8 , 2007 , Schwimmer made a guest appearance in the second season of the television series 30 Rock , where he played Greenzo , an NBC environmental mascot . The following year , he was part of an ensemble cast that included Kate Beckinsale , Matt Dillon , Alan Alda , Angela Bassett , and Noah Wyle in the thriller Nothing But the Truth ( 2008 ) . The movie received generally favorable reviews . The success of Madagascar led Schwimmer to return to the role of Melman in the 2008 sequel , Madagascar : Escape 2 Africa . The film earned US $ 603 million at the international box office . Schwimmer took part in directing in @-@ studio segments for Little Britain USA , an American spinoff of the British BBC television series Little Britain . In regard to this , he commented that he had " a good time directing episodes " for the show . 
