When the curtain goes up for “A Courthouse Line X” at the 14th Street Playhouse on Nov. 7, Catherine M. O’Neil will be frenetically busy backstage, directing the popular fundraiser for the Atlanta Bar Foundation. Then, she will dance.

O’Neil, a litigation partner at King & Spalding, has always been “a bit of a ham,” she says, so the co-founder, director and producer of the long-running Bard Show, as the musical revue has come to be called, can’t help but step out in front of the footlights and perform.