What About Bob? is a 1991 comedy movie directed by Frank Oz which stars Bill Murray and Richard Dreyfuss. Bill Murray plays Bob Wiley, a very kind but multiphobic psychiatric patient who follows his successful and beyond egotistical psychiatrist Dr. Leo Marvin (played by Richard Dreyfuss) on vacation. When the unstable Bob befriends the other members of the Marvin clan, it slowly drives Leo insane. Other characters include Fay Marvin, played by Julie Hagerty, Anna Marvin, played by Kathryn Erbe, Sigmund "Siggy" Marvin, played by Charlie Korsmo and Mr. and Mrs. Guttman, played by Tom Aldredge and Susan Willis.