The lead role of Clark Griswold in the 1989 film National Lampoon's Christmas Vacation was played by actor Chevy Chase.
Chevy Chase is an American actor, comedian, and writer. He is best known for his role as Clark Griswold in the National Lampoon's Vacation film series, as well as for his appearances on Saturday Night Live and in films such as Caddyshack (1980), Fletch (1985), and Three Amigos (1986). He has won numerous awards, including an Emmy Award and a Golden Globe Award. Chase is also known for his philanthropic work, including his involvement with the National Lampoon's Christmas Vacation movie, which has raised millions of dollars for charities.