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"Sir Ian McKellen has hinted at an interest in guest starring in Glee. The actor was in the midst of a Twitter chat today (July 11) when he was quizzed on if he would ever consider appearing in an American television series.  &amp;quot;If the entire cast of Glee got down on their knees I might have to consider it,&amp;quot; he jokingly replied. Glee has attracted many Hollywood stars for guest roles, with Sarah Jessica Parker, Kate Hudson, Whoopi Goldberg and Demi Lovato having appeared. McKellen has worked extensively in British television throughout his acclaimed career.  He famously portrayed David Copperfield in a 1966 BBC serial, and has more recently voiced the villainous Great Intelligence in Doctor Who and starred opposite Sir Derek Jacobi in Vicious. The Lord of the Rings star will soon portray a 93-year-old Sherlock Holmes in the upcoming film Mr Holmes. The sixth and final season of Glee is expected to air in 2015, although a premiere date has not yet been announced by Fox. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/tv/glee/news/a583798/ian-mckellen-jokes-about-glee-cameo-if-cast-begs-me-i-might-do-it/>