Kate Reinders made her Broadway debut in 2001 as an understudy to The Adventures of Tom Sawyer. She later appeared in productions of Into the Woods and Good Vibrations.
Her first major stage role was in the musical Wicked, playing Glinda in its Chicago run alongside Ana Gasteyer; she was given a Joseph Jefferson Award nomination. She later appeared in Wicked's Broadway run, taking over from Megan Hilty.
Reinders' television credits include a guest role on Ugly Betty and the short-lived Sherri. She currently stars in the ABC comedy Work It.