Andrew Simpson, a bass-baritone from Dallas, Texas, has had a prolific career in opera. He was a student of the renowned bass Samuel Ramey at Wichita State University. His performances include Angelotti in Tosca with Wichita Grand and Virginia Operas, Betto in Gianni Schicchi with Chicago Opera Theater, the footman in Vanessa at the Santa Fe Opera, and Don Basilio in Il barbiere di Siviglia at Opera in the Rock.

As a resident artist with Palm Beach Opera, he sang various roles, including the Imperial Commissioner in Madama Butterfly, Count Ceprano in Rigoletto, the Jailer in Tosca, and Antonio in Le nozze di Figaro. In 2024, he performed as Basilio in Tri-City Opera's production of Il barbiere di Siviglia, Don Giovanni in White Snake Production's adaptation of the Mozart opera, Domme + Giovanni and joins Crested Butte Festival as Don Alfonso in Così fan tutte and the bass soloist in Beethoven's Ninth Symphony.

His other performances include the title role of Don Giovanni with Tec Monterrey in Mexico and White Snake Projects, Basilio in Il Barbiere di Siviglia with Penn Square Opera, Ceprano in Rigoletto with Holy City Arts, Sam in Trouble in Tahiti with Florida Grand Opera, and Count Ceprano in Rigoletto and covering Sparafucile with Central City Opera. He has also sung Colline in La bohème with the Fairfax Symphony Orchestra, Zuniga in Carmen with Annapolis Opera, and First Soldier in Salome with the Dallas Symphony Orchestra.

As an apprentice at Santa Fe Opera, he covered Masetto in Don Giovanni and Sid in La fanciulla del West. Additional roles include The Bonze in Madama Butterfly, Sparafucile and Monterone in Rigoletto, The Pirate King in Pirates of Penzance, Figaro in Le nozze di Figaro with Palm Beach Opera, Amonasro in Aida with Virginia Opera, Geronimo in Il matrimonio segreto, and the title role in Don Giovanni with Sarasota Opera.