I'm assuming a lot of you know who these people are...
My dream casting:
Laura Osnes as Anna (Laura Osnes made her Broadway debut as Sandy in the 2007 revival of "Grease", a role she won by public vote on national TV. Since then her Broadway credits have included Nellie Forbush in "South Pacific", Hope Harcourt in "Anything Goes", Bonnie in "Bonnie and Clyde" and Ella in "Rogers and Hammerstein's Cinderella".)
Caroline Bowman as Elsa (Caroline Bowman got her big break in the Ensemble of the original Broadway cast of "Kinky Boots", and got her first leading role as Eva Peron in the recent national tour of "Evita" and more recently she played another one of Idina Menzel's original roles, Elphaba the Wicked Witch of the West in the Broadway production of "Wicked", a role she understudied on tour)
Christopher Fitzgerald as Olaf (Christopher Fitzgerald has firmly cemented himself as one of Broadway's hardest working character actors. He played Boq in the original Broadway cast of "Wicked" and was nominated for a Tony Award for his performance as Igor in the original Broadway cast of "Young Frankenstein")
Billy Magnussen as Kristoff (Billy Magnussen got his big break on the Great White Way playing the role of Spike in "Vanya and Sonia and Masha and Spike", for which he was nominated for the Tony Award. His performance in that caught the attention of Meryl Streep who brought him to the attention of casting directors and was immediately cast as Rapunzel's Prince in the film version of "Into the Woods")
Josh Young as Hans (Josh Young played Marius in the national tour of "Les Miserables", and was nominated for the Tony Award for his portrayal of Judas in the recent revival of "Jesus Christ Superstar" and was Che in the national tour of "Evita". More recently he played the lead role in the Broadway production of "Amazing Grace")