Dan Ackroyd was born to Samual Cuthbert Peter Hugh Aykroyd and Lorraine (Gougeon) Aykroyd. Ackroyd's father was assistant deputy minister of transport at one time and his mother was an executive secretary within the Canadian Government.
Ackroyd came from a strict Roman Catholic family and considered attending a seminary until his high jinx intervened with the plans. Instead he attended Carlton University in Ottawa taking psychology, criminology & political science. He left Carlton without a degree but has gone onto incredible success with his comedy & music.
Although having been involved with theater and cable television, his first "break" came when he joined the cast of Second City in Toronto, Ontario. Eventually Ackroyd, John Belushi, Chevy Chase, George Coe, Jane Curtin, Garrett Morris, Laraine Newman, Michael O' Donoghue and Gilda Radner joined Canadian, Lorne Michaels, to form the first Saturday Night Live cast.
It was here that Ackroyd & Belushi developed many of their famous characters, including the Blues Brothers which brought them movie roles and recording hits. Ackroyd, in Elwood character, hosts a syndicated radio show called House of Blues and was one of the original investors in the House of Blues music halls. He continues to be part owner of the growing enterprise.
Ackroyd has some unique hobbies & interests. The first being his collection of old police paraphenalia. He can be seen riding an old OPP (Ontario Provincial Police) motorcycle. His grandfather was a Mountie. 
The second is his interest in the paranormal, which possibly spawned the Ghostbusters stories. He also worked with his brother as narrator of the television show PSI Factor: Chronicles of the Paranormal.
This topic is familiar to both Ackroyd's as their father, grandfather and great-grandfather collected paranormal research. Their great-grandfather was a principal member of the British Society of Psychic Research.
Ackroyd has appeared and starred in numerous films - check out some of the links below for more detailed information.