Sequel to "The Absent-Minded Professor" with Fred MacMurray as the scatterbrain, pitching a dry-rain device. Keenan Wynn, Nancy Olson. Biff: Tommy Kirk. Shelby: Elliott Reid. Desiree: Joanna Moore. Daggett: Leon Ames. A.J.: Ed Wynn. Hurley: Ken Murray. Murdock: Charlie Ruggles. Harker: Bob Sweeney. Hummel: William Demarest. Robert Stevenson directed.