Sly Smith

In the fourth outing for the vacation franchise, the Griswolds have to survive Vegas fever when they go to Las Vegas for a fun family vacation.

Kirsten Dunst plays a young woman (Lidda), who is searching for her father (James Caan). She finds herself at odds with her boyfriend who wants nothing but a carefree lifestyle.

Bob Newhart stars as comedian Todd Wilson, whose act includes a chimp. Linda Gray plays Laura, the love interest - for Todd, not the chimp.