<P> Initially , Trial by Jury , which runs only 30 minutes or so , was played last on a triple bill , on which the main attraction , La Périchole ( starring Dolaro as the title character , Fred Sullivan as Don Andres and Walter H. Fisher as Piquillo ) , was preceded by the one - act farce Cryptoconchoidsyphonostomata . The latter was immediately replaced by a series of other curtain raisers . The composer conducted the first night 's performance , and the theatre 's music director , B. Simmons , conducted thereafter . The composer 's brother , Fred Sullivan , starred as the Learned Judge , with Nellie Bromley as the Plaintiff . One of the choristers in Trial by Jury , W.S. Penley , was promoted in November 1875 to the small part of the Foreman of the Jury and made a strong impact on audiences with his amusing facial expressions and gestures . In March 1876 , he temporarily replaced Fred Sullivan as the Judge , when Fred 's health declined from tuberculosis . With this start , Penley went on to a successful career as comic actor , culminating with the lead role in the record - breaking original production of Charley 's Aunt . Fred Sullivan died in January 1877 . </P>
who created the part of the learned judge on the original production of trial by jury
The composer 's brother , Fred Sullivan