- Friend of Bob O'Connor and retained by Mayor Luke Ravenstahl and nominated to Public Service Director. Then the nomination was pulled by the mayor.
- Made chief of staff in July, 2006 by the mayor.
- Was Executive Director of Intergovernmental Affairs in the first six months of 2006.
- 54 in 2006.
- Resides in Point Breeze
- was paid $92,286-a-year for his post with the city.
- Suspended October 21, 2006 from the job with the city of Pittsburgh.
- Pittsburgh Mayor Luke Ravenstahl said he did not ask Dennis Regan to resign and said there was "no conclusive evidence" he had done anything wrong. From December, 2006, 
- Catherine McNeilly, (see whistleblowers) presented insights against Dennis Regan as he was to become head of all Public Service departments.
- http://burghreport.blogspot.com/2006/12/she-would-end-up-back-walking-beat.html from December, 2006 and points to the October report from Andy Sheehan of KDKA-TV about Dukes Tires on the South Side
- http://burghreport.blogspot.com/2006/12/regan-resigns-was-there-even.html from December, 2006
- http://burghreport.blogspot.com/2006/11/trib-prints-regan-reed-smith-rumor.html from November, 2006
- City clears Regan, who quits December 02, 2006 by Rich Lord, Pittsburgh Post-Gazette -- Operations director, Dennis Regan, was accused of meddling in personnel decision
- How O'Connor pal rose and fell so fast in P-G in October, 2006
- ThePittsburghChannel.com - News - Police E-Mail Raises New Public Safety Director Concerns October 10, 2006 PITTSBURGH -- Mayor Luke Ravenstahl asked Pittsburgh City Council last week to approve his top aide as public safety director, but many questions surround the issue.
- Councilman William Peduto has already questioned whether Ravenstahl's choice, Dennis Regan, has the background or experience to become public safety director.
- "I believe it's incumbent on the mayor today to withdraw the nomination," said Peduto. "It should not go forward. We don't need legal interpretation.'"
- Peduto says Regan lacks experience for safety post, October 5, 2006
- New chief of staff says he's a protector - Pittsburgh Tribune-Review Dennis Regan likes to compare himself to a low-swimming whale. He comes up for air only when absolutely necessary so he doesn't get harpooned.
Dennis Regan -- Old role: Tough-as-nails mayoral enforcer you better think twice about crossing.
New role: Apparently none in a Luke Ravenstahl administration.
Still, long after midnight, on nights when the moon is full, some security guards swear a seemingly transparent Regan walks the lonely halls of the City-County Building, jiggling the locked doorknob of his former office before he mysteriously vanishes.
Probably just a trick of the light.
- Marlene Cassidy is a housemate with Dennis Regan in 2006.