- (L) Mr. Charles Wyndham, actor, as "Garrick" - (Center) Sir Charles Wyndham, after knighthood - and - (R) as Capt. Smooth in "Money" -
Further stage work was not forthcoming, and he returned to medicine. There was a shortage of surgeons in the United States, which was in the throes of the Civil War, and he volunteered to became brigade surgeon in the Union army. He served at the battles of Fredericksburg, Chancellorsville and Gettysburg. On 17 November 1864 he resigned his contract with the Army to return to the stage. He starred, in 1867, in W. S. Gilbert's La Vivandière. In later years he was to appear in America: between 1870-1872 in his own Wyndham Comedy Company; and in later tours between 1882 and 1909. On one occasion he appeared in New York with John Wilkes Booth.
Returning to England, his career blossomed. Although he was occasionally to play Shakespeare, his work mostly consisted of the popular melodramas and comedies of the time. From 1885 onwards his leading actress was Miss Mary Moore (Mrs. Albery), who became his partner in the proprietorship of the Criterion and Wyndham's theatres, and of his New Theatre, opened in 1903; and her delightful acting in comedy made their long association memorable on the London stage.
Wyndham was knighted in 1902. In 1916 he married Mary Moore (widow of James Albery), who for 30 years had been his leading lady and had also been associated with him as a manager.