In alphabetical order, spelling preserved.
I'll give links to the sources of information. (Of course it doesn't mean, that the source is reliable and information is correct).
Janice Adams - mistress of Conrad Murray (http://www.michaeljackson.com/us/node/1067766)
David Adams - doctor, who administered propofol to MJ in as Vegas before Murray (http://www.radaronline.com/category/tags/dr-david-adams) Though he can be Allen Adams as well...
Alberto Alvarez - MJ's bodyguard that witnessed Murray performing CPR on MJ (http://www.thehollywoodgossip.com/2010/03/alberto-alvarez-dr-conrad-murray-stopped-cpr-on-michael-jackson/)
Nicole Alvarez - girlfriend of Murray
Dan Anderson - Supervising Criminologist II - Forensic Laboratories (http://helpfindthemissing.org/forum/showthread.php?p=824825) - here I found out that I'm not the only one and not the first one who is interested in who is who.
But still I will continue.
Sade Anding - numerous girlfried of Murray
John Andrews - Deputy Medical Examiner - Neuropathology Consult (http://helpfindthemissing.org/forum/showthread.php?p=824825)
Erwin Azurdia - not sure yet
Edgar Barrios - not sure yet
Rudolf Bedford - maybe a doctor (http://www.vitals.com/doctors/Dr_Rudolph_Bedford.html)
Behnke, Detective - I suspect, that Detective is not a name, it's occupation
Michelle Bella - stripper (http://www.tmz.com/2011/04/14/conrad-murray-michael-jackson-manslaughter-reaction-propofol-bridgette-morgan-michelle-bella-sade-armstrongattorney-strip-clubs-women-money-girlfriend/)
Jacqueline Benjamin - a doctor?.. (http://www.vitals.com/doctors/Dr_Jacqueline_Benjamin.html)
Martin Blount - paramedic (http://www.radaronline.com/category/tags/martin-blount)
Donald Boger - Radiology Consultant (http://helpfindthemissing.org/forum/showthread.php?t=24299&page=9)
Gary Brigandy - perhaps Gary Burgandy, paramedic (http://www.teammichaeljackson.com/tmj_279.htm)
Vanessa Brooks - no idea...
Julie Brown - former lawer of one of Murray's girlfriends (http://www.thehollywoodgossip.com/2009/10/dr-conrad-murray-flakes-on-child-support/) I think this guy had too many girlfriends already!..
Robert Budd - Laboratory Analyst (http://helpfindthemissing.org/forum/showthread.php?t=24299&page=9)
Steven Burdick - a doctor?.. (http://www.ratemds.com/doctor-ratings/156024/Dr-Steven-Burdick-Dallas-TX.html)
Andrew Butler - patient of Conrad Murray (http://www.mj-777.com/?page_id=6962)
Selma Calmes - Anesthesiologist Consultant (http://helpfindthemissing.org/forum/showthread.php?t=24299&page=9)
Kai Chase - MJ's cook
Christopher Clonen - Computer Forensic Examiner at Government?.. Hmmm... (http://www.linkedin.com/pub/christopher-clonen/8/126/418)
Lesley Contreras - no idea
Richelle Cooper - doctor in UCLA who pronounced MJ dead (http://www.washingtontimes.com/news/2011/jan/7/er-doc-jackson-dead-long-before-hospital-arrival/)
Daniel Cruz - choreographer (http://www.europost.bg/article?id=1507)
Jenna Daddario - no idea...
Harry Daliwal - AT&T area manager (http://articles.latimes.com/2011/jan/06/news/la-murray6-sl)
Sarah DeQuintana - Laboratory Analyst (http://www.mjjcommunity.com/forum/showthread.php/115271-Possible-witnesses-Information-and-Discussion)
Frank Dileo - is Frank Dileo. I hope his health gets better.
Ashraf Elsayegh - perhaps a pulmonologist (http://www.healthgrades.com/directory_search/physician/profiles/dr-md-reports/Dr-Ashraf-Elsayegh-MD-9DD27C20.cfm)
Karen Faye - MJ's make-up artist for many-many years
Thomas Ferguson - not sure...
To be continued.