Cheryl Yancey previously served on the faculty and was the resident costume designer for Allentown College of St. Francis DeSales (now DeSales University) in Pennsylvania, as well as the resident designer for the Pennsylvania Shakespeare Festival, in Centerville, Pennsylvania. She has also designed for the Washington Stage Guild and The George Washington University in Washington, D.C.; Dorney Park in Allentown, Pennsylvania; and Robin Miller Productions in Bethlehem, Pennsylvania.

Yancey has also received American College Theatre awards for her costume designs for A Flea in Her Ear, A Man for All Seasons and The Cherry Orchard.

She has designed costumes for 31 of the seasons for Shenandoah Summer Music Theatre (SSMT) in Winchester, Virginia. Her designs include Young Frankenstein, Mamma Mia!, Show Boat, Crazy for You, Damn Yankees, Gigi, Jesus Christ Superstar, Fiddler on the Roof, 1776, Seven Brides for Seven Brothers, Seussical, Disney’s Beauty and the Beast, Cats, Shrek!: The Musical, Monty Python’s Spamalot, The Wiz, Pirates of Penzance and My Fair Lady. Her costumes for Pirates of Penzance were named as some of the best in the Washington, D.C., area; her costumes for Grease! were named the best costume designs for a musical by Broadway World (regional) in 2021; and her designs for Cinderella were nominated for best costume design for Broadway World (regional) in 2022.