Boy meets girl; boy falls in love (and had wild, non-stop sex) with girl; boy loses girl... when they discover they are brother and sister! But when he learns that he's the victim of the ultimate case of mistaken identity, the lovesick young man -- whom everyone still thinks is after some taboo thrills -- must race across the country to stop her from marrying another man.
Full Cast of Say It Isn't So
Chris Klein
Frederick Christopher "Chris" Klein (born March 14, 1979) is an American movie actor. He is perhaps best known for pl...
Orlando Jones
Orlando Jones (born April 10, 1968) is an American comedian and film and television actor. He is notable for being on...
Sally Field
Sally Margaret Field (born November 6, 1946) is an American actress. She has received many awards and nominations, in...
John Rothman
John Rothman is an actor and writer.
Jack Plotnick
From Wikipedia, the free encyclopedia. Jack Stuart Plotnick (born October 30, 1968) is an American film and televisi...
Mark Pellegrino
Mark Ross Pellegrino (born April 9, 1965) is an American actor of film and television. He is best known for his work ...
Richard Riehle
An American actor. Richard attended the University of Notre Dame, where he became heavily involved with the Universit...
Brent Briscoe
From Wikipedia, the free encyclopedia. Brent Briscoe (May 21, 1961 – October 18, 2017) was an American actor and ...
Ezra Buzzington
Ezra Buzzington is "that guy" from "Oh, that guy!". He's been in dozens of popular films but isn't one you'd recogniz...
Julie White
From Wikipedia, the free encyclopedia. Julie White (born June 4, 1961) is an American actress. She is known for her ...
David L. Lander
David L. Lander was born on June 22, 1947 in Brooklyn, New York, USA as David Leonard Landau. He was an actor and wri...
Lin Shaye
Lin attended the University of Michigan, where she was an Art History major, although acting in as many University pr...
Barrow Davis
C. Ernst Harth
C. Ernst Harth got his first taste of acting in grade school when the drama club cast the school's largest child to p...
Connor Widdows
Connor Widdows was born on January 27, 1992 and is currently 33 years old.
Courtney Peldon
Courtney Peldon is an American television and film actress.
Matthew Peters
Ed Holden
Sarah Silverman
Sarah Kate Silverman (born December 1, 1970) is an American comedian, actress, and writer. Her comedy addresses socia...
Zahf Paroo
Zahf Paroo (born Zahfeer Hajee) is a Canadian actor, host, voice-over actor, and sketch-comedy artist. Zahf has had ...
Crew of Say It Isn't So
Discover the backstage crew of Say It Isn't So →- Released on March 10, 2001