Margaret or "Aunt Maggie" Barnes Monahan appears in a total of four episodes of the original Dallas TV series, beginning with the Season 2 episodes "Reunion: Part I" and "Reunion: Part II" in Season 2. The part of Maggie is played on the series by Sarah Cunningham. A younger Maggie is played in the 1986 CBS-TV film Dallas:The Early Years by Norma Moore.