Daniel Edward "Dan" Aykroyd, CM (born July 1, 1952) is an Academy Award-nominated and Emmy Award-winning Canadian comedian, actor, screenwriter, musician, winemaker and ufologist. He was an original cast member of Saturday Night Live, an originator of The Blues Brothers (with John Belushi) and Ghostbusters and has had a long career as a film actor and screenwriter.

Aykroyd was born on July 1, 1952 at the Ottawa General Hospital in Ottawa, Ontario, Canada. He grew up in the Canadian capital where his father, Samuel Cuthbert Peter Hugh Aykroyd, a civil engineer, worked as a policy adviser to Canadian Prime Minister Pierre Trudeau. His mother, Lorraine (née Gougeon), is a secretary of French Canadian origin, and his brother, Peter, also became a comedy actor. Aykroyd was born with syndactyly (webbed toes), which was revealed in the movie Mr. Mike's Mondo Video and in a short film on Saturday Night Live (Don't Look Back In Anger). He was also born with heterochromia (a condition of having two differently colored eyes). His right eye is green and his left eye is brown.

Aykroyd's great-grandfather, a dentist, had been a mystic and had been involved in Spiritualism, which Aykroyd would have a great interest in, stating that "all that stuff was hanging around the old farmhouse I grew up in, so I was kind of steeped in it".