(1865–1931), character actor. The native New Yorker made his debut in German-language theatricals while still a child, then withdrew from the stage to complete his education. Mann later performed with such notables as Lawrence Barrett, John McCullough, and Tommaso Salvini, and created the role of Dick Winters in Incog (1892) before recognizing that his true métier was in dialect roles. His most famous part was Karl Pfeifer, whose loyalty to the fatherland was tested, in Friendly Enemies (1918). He often appeared in conjunction with his wife, Clara Lipman.
From The Oxford Companion to American Theatre in Oxford Reference.