His father was Maurice Barrymore, an Indian-born British actor who had been born Herbert Blyth, and had adopted Barrymore as a stage name after seeing it on a poster in the Haymarket Theatre in London.
O seu pai era Maurice Barrymore, un actor británico de orixe india nado como Herbert Blyth, que adoptou o nome artístico de Barrymore tras velo nun póster no Haymarket Theatre de Londres.