As an avid blues fan, he hosted a nationally syndicated radio show "House of Blues" as his The Blues Brothers (1980) character Elwood Blues.
A police buff, he rides an Ontario Provincial Police motorcycle, collects police badges, sometimes rides shotgun with detectives in squad cars, and owns a business in partnership with several Toronto police officers.
Was good friends with John Belushi.
Is very interested in the supernatural and has an extensive collection of books on the subject.
His grandfather was a member of the Royal Canadian Mounted Police.
Was once engaged to Carrie Fisher.
Daughters with Donna Dixon: Danielle Alexandra (Danielle Aykroyd) (born November 18, 1989), Belle Kingston (born June 9, 1993), and Stella Irene August (April 5, 1998, weighing 6 lb at birth).
Worked as a mail sorter for Canada's national postal service before he became an actor.
Older brother of Peter Aykroyd. Like Peter, an alumnus of the Second City comedy troupe in Toronto.
He is a Roman Catholic, and is of English, Irish/Scottish, Dutch, French, and French-Canadian ancestry. On his father's side, he can trace his ancestry to the 15th century.
Is a victim of syndactylism, a birth defect where several digits are fused together. In Mr. Mike's Mondo Video (1979), he takes his shoes and socks off on-screen, to reveal this anomaly.
Co-owns House of Blues with friend Isaac Tigrett
On his passport, he lists his occupation as "Writer".
Has played harmonica since he was 17 years old.
Holds an advisory commission with the Police Department in Payne City, Georgia.
Once helped to subdue a drunk and disorderly passenger on a Montreal-to-Los Angeles flight.
Was offered the role of "D-Day" in Animal House (1978), but turned it down due to his commitment to Saturday Night Live (1975). According to John Landis, Lorne Michaels threatened to fire Aykroyd if he took the role.