Susan Diol

Susan Vanita Diol is an American television actress who has played supporting roles in over forty series, including Quantum Leap, One Life to Live, Wings, Star Trek: The Next Generation, Star Trek: Voyager, NCIS, CSI: Crime Scene Investigation, and ''Quantum Leap.

Diol acted in children's theatre productions in Illinois before beginning her on-screen career.

She appeared in episodes of sitcoms, including: two 1990 episodes of Night Court, playing Dan Fielding's (John Larroquette) sister Donna; the Seinfeld 1991 episode "The Nose Job", as Audrey (the one who had the nose job); and a 1995 episode of Wings, playing a call girl whom Joe and Brian inadvertently choose as a rebound date for lovelorn Antonio.

Diol has appeared in episodes of science fiction television series, including: portraying Carmen Davila in the Star Trek: The Next Generation episode "Silicon Avatar"; the role of Doctor Danara Pel in the Star Trek: Voyager episodes "Lifesigns" and "Resolutions"; the role of Beth Calavicci, first wife of Al Calavicci, in two episodes of Quantum Leap (including the series finale); and reprised the role of Beth in three episodes (as of season 2) of the 2022 revival series.

Diol graduated from Otterbein College in Westerville, Ohio.

She has married four times: to Jerry Rapp (1991–1993), Shaun Cassidy (1995–2003), Andy Cadiff (2003–2010), and William Newkirk (2014–2016).

During her marriage to Cassidy, Diol had a child named Juliet Jones Diol-Cassidy.