Parsons, who is Emmy-nominated for his work on "The Big Bang Theory," will join Louis C.K., Amy Poehler, Ricky Gervais, Ginnifer Goodwin and Mindy Kaling as presenters at the awards ceremony, which will be broadcast at 8 PM ET on ABC.
Theatre-related nominees for the 2012 awards include choreographer Joshua Bergasse for "Smash," songwriters Marc Shaiman and Scott Wittman for "Smash," London stage star Benedict Cumberbatch for the miniseries "Sherlock," Uma Thurman for Guest Actress in a Drama Series for "Smash" and the 65th Annual Tony Awards for Special Class Programs, among others.
Read the earlier Playbill.com story about the 2012 nominees.
For more information, visit Emmys.com.