Koch joins the tour after standing by for Elphaba in the current Broadway production. Cooper previously played Glinda in the first national tour of Wicked. Both Haley and Seferian are new to the production.
The national tour also features Wendy Worthington (Madame Morrible), Stuart Zagnit (The Wizard), Jake Boyd (Fiyero), Chad Jennings (Doctor Dillamond) and Mary Kate Morrissey (Standby for Elphaba), with Allison Bailey, Kerry Blanchard, Beka Burnham, Bridie Carroll, Jordan Casanova, Kennedy Caughell, Michael Di Liberto, Michael Drolet, Kelli Erdmann, Ryan Patrick Farrell, Dominic Giudici, Dan Gleason, Kali Grinder, Lauren Haughton, Ryan Jackson, Kelly Lafarga, Lauren Sambataro, Wayne Schroder, Tregoney Shepherd, Mark Shunkey, Ben Susak, Travis Taber, Jeremy Thompson and Justin Wirick.
For more information visit wickedthemusical.com.