When Glee finally returns with a new episode on November 8, the Fox hit will feature twice the returns and also twice the cartwheels.

Indeed, "The Role You Were Born to Play" will bring both Mike (Harry Shum Jr.) and Mercedes (Amber Riley) back into the fold at William McKinley, with Melissa Benoist (Marley) also hyping in the following video that the installment marks the "first big group dance number" of Glee Season 4.

How do cartwheels play a role? And how do Heather Morris and Vanessa Lengies welcome Shum back to the set?

Watch now for the answers:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.