Brill was a comedian/writer/actor/musician who appeared regularly on 1960s and 1970s TV in both variety shows and sitcoms. In the late 1970s, Marty Brill did some writing in the 1970s for the New Soupy Sales Show, also occasionally playing characters on the show, especially after Soupy longtime sidekick took ill during production of the series. He also was the lyricist for the short lived 1964 Broadway musical Cafe Crown.