Jane Lynch To Guest Star on iCarly July 6, 2010 News, Nickelodeon Jane Lynch is about to cast her net even wider after being cast on the Nickelodeon show iCarly. Lynch will play the role of the often mentioned, but never before seen, mother of Jennette McCurdy’s character, Sam. Lynch will appear in one episode which is expected to air sometime during the third season of iCarly. Lynch is better known for her role as Sue Sylvester in Fox TV series Glee. (Source: Michael Ausiello) Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)