Michael Gunn met Richard D'Oyly Carte in 1875 and later became a partner in his production company. He and young Edwardes moved to London to work for Carte at the Opera Comique in the late 1870s, with Edwardes being given the trusted position of treasurer. He eventually became Carte's manager at the Opera Comique and then was Carte's first managing director of the Savoy Theatre in 1881, helping to produce several of the famous Gilbert and Sullivan comic operas until 1885. During this time, he added the "e" to his surname. While working at the Opera Comique, Edwardes met his future wife, singer Julia Gwynne, whom he brought to the D'Oyly Carte Opera Company, where she became a principal player. The couple married in 1885 and produced three daughters, including one named Dorothy, and a son, D'Arcy.