Sentence:  A comedy in Three Acts '' , in which , under `` Personages '' , Henrietta appeared as `` A Schoolmarm '' , and Bertha , who was only a trifle less brilliant in high school than Henrietta had been , <WSD>appeared</WSD> as `` Dummkopf '' . 
Meaning of the word marked with <WSD> tags:  appear as a character on stage or appear in a play, etc.