As far as the ensemble is concerned, there have been quite a few changes within the past year or so. You have Jessica Ernest playing a fantastic Go-To-Hell-Kitty and is also one of the Roxie understudies. There is Dan Gutierrez (who has played mainly in the touring company and is a swing). Drew Nellessen is an ensemble cast member who has played with the tour. Beth Johnson Nicely is another talented player. Rachel Schur is another of the Roxie understudies. Naomi C. Walley is an ensemble member, but is also a Velma Kelly / Matron Mama Morton understudy. I must admit that there is a very small group of ladies who have an opportunity to play Velma Kelly. One person has gone on as Velma the longest, within the past 8-9 years. Every once in a while, the show brings in a celebrity Roxie, but for a very limited time. I remember seeing Brandy perform as Roxie very well. Celebrity Billy Flynns are sought after because of their name value, appeal and talent. There hasn't been a celebrity Velma Kelly in a very long time. It is a difficult role that has all sorts of requirements. My dream celebrity choice to play Velma Kelly (or Roxie Hart) would be Katharine McPhee.
"Noel [Coward] and I were in Paris once. Adjoining rooms, of course. One night, I felt mischievous, so I knocked on Noel's door, and he asked, 'Who is it?' I lowered my voice and said 'Hotel detective. Have you got a gentleman in your room?' He answered, 'Just a minute, I'll ask him.'" (Beatrice Lillie)