He was nominated for a 2009 Joseph Jefferson Award for Actor in a Supporting Role in a Musical for "Million Dollar Quartet" in a Dee Gee Theatricals, John Cossette Productions, and Northern Lights Inc. in Chicago, Illinois.
His partner, Jason, was his date to the 2010 Tony Awards.
Kreis won the 2010 Tony Award for Best Performance by a Featured Actor in a Musical for playing Jerry Lee Lewis in "Million Dollar Quartet".
Kreis grew up attending a fundamentalist Baptist church. He still considers himself a religious person, and as of 2010 is studying to become an ordained minister.