In casting
Glee, Murphy sought out actors who could identify with the rush of starring in theatrical roles. Instead of using traditional network casting calls, he spent three months on Broadway, where he found Matthew Morrison, who had previously starred on stage in Hairspray and The Light in the Piazza; Lea Michele, who starred in Spring Awakening; and Jenna Ushkowitz, who had been in the Broadway revival of The King and I.

Jane Lynch – (Sue Sylvester)
Jessalyn Gilsig – (Terri Scheuster)
Jayma Mays – (Emma Pillsbury)
Matthew J. Morrison – (Will Scheuster)
Cory Monteith – (Finn Hudson)
Dianna Agron – (Quinn Fabray)
Chris Colfer – (Kurt Hummel)
Amber Riley – (Mercedes Jones)
Mark Salling – (Puck)
Lea Michele – (Rachel Berry)
Jenna Ushkowitz – (Tina)
Kevin McHale – (Artie Abrams)