This show by creator Jeff Davies describes the hard-working assignments carried out by the FBI Behavioral Analysis Unit (BAU). The crack team of FBI Profilers undertake twisted cases and analyze the nation's most dangerous serial murderers and individual heinous crimes in an effort to anticipate their next moves before they strike again . The intelligent investigators form an elite group of profilers who use the best scientific and technical methods to resolve killings of extremely violent nature , where the perpetrator is unknown and to get detain the heinous delinquents , utilizing complex profilages and the occasional leap in logic . Using evidence from the case and matching that information to historic precedents and psychological analyses to solve the case . As they are mobile , thanks a to their luxurious plane and have the necessary cooperation with local police and other FBI agents .
Based in Quantico , Virginia , BAU is a subsection of the FBI who discovers perpetrators using scientific analysis , high technology and solving difficult crimes , as they investigate the evidence from the crime scenes , compose a profile and try to prevent the individual grisly crimes in an effort their next moves before they strike again . With an extreme dedication towards their quest for the true facts , the chief staff , and their underlings investigate the evidence from the crime scenes , compose a profile and try to prevent the next deadly strike . This elite team of investigators work several twisted cases using scientific skills , computers and equipment that are capable of finding valuable tracks from the most allegedly unlikely sources . Majority of the techniques and technologies used in the BAU shown in the series are accurate and true to reality .
The nice actors who play these notorious characters from BAU -whose members are fiercely loyal to the Unit and to its other members- , they are the followings : 1- Jason Gideon efficiently acted by Mandy Patinkin who inspires great respect to the other members but left the bureau after some difficult decisions . He has a special relationship with the young, socially withdrawn, genius Spencer Reid , whom he mentors . He is divorced and he has a 25-year-old son . He owns a remote cabin in the woods, where he likes to retire . 2- He is succeeded by his operational right hand man Aaron "Hotch" Hotchner well played by Thomas Gibson , he was a prosecutor for a time , it allows him to judge when and how it may be necessary to skirt the law to successfully capture and prosecute an UNSUB (unknown subject). He is often a hostage negotiator and has been for over a decade he states that he wrote a book on it . He is often referred to as a drill sergeant , rarely smiles and it is a common joke that he doesn't blink . He married Haley , Meredith Monroe , his high school sweetheart. 3- David Rossi performed by Joe Mantegna , previously retired , rejoins the bureau in an effort to make a difference in people's lives again and follow up on a case he worked years ago . He has been searching for a killer who killed a mother and father in the same house as their three children , the oldest of whom found the bodies . He promised the children that he would catch their parents' killer . He is one of the most experienced and having written a book on the subject. 4-Penelope Garcia amusingly interpreted by Kirsten Vangsness , a brilliant computer whiz who gets access to any database etc. She was put on a FBI watch list that consisted of only a handful of hackers in the world . After an incident in which Derek Morgan , Shemar Moore, couldn't remember her name, Garcia and Morgan talk to each other using pet names like "sweet cheeks", or "hot stuff". Garcia also has a tendency to answer her phone in outlandish ways . 5- FBI BAU Special Agent Derek Morgan is decently played by African-American Shemar Moore , who was formerly a Chicago Police Officer . After his father died when he was ten , he got into trouble and earned himself a juvenile criminal record . A local youth center coordinater acted as a surrogate father and helped Morgan earn a football college scholarship, but he also sexually abused him . 6- The still juvenile good-tempered Dr. Spencer Reid is excellently portrayed by Matthew Gray Gubler (who also directed some episodes) , he is an erudite on everything except real life. 7- A.J. Cook plays Agent Jennifer "JJ" Jareau , she decided to join the FBI after attending a book reading held by David Rossi, at the beginning her job involves mostly doing paperwork, talking to the media and the local authorities and comforting the victims' families ; in later seasons, she participates in field missions more often . She starts secretly dating Detective LaMontagne Jr. , Josh Stewart, whom she met on a case in New Orleans . In 3ª season they reveal their relationship and soon afterwards , JJ becomes pregnant. 8- FBI BAU Supervisory Agent Emily Prentiss was finely played by Paget Brewster. She is fluent in several languages and once worked for Interpol. It is later revealed that it was Chief Erin Strauss ,Jayne Atkinson , who put her on the team, hoping to use her in order to gain inside information against Hotchner . However, Prentiss becomes loyal to the team and, instead of betraying him , she prefers to tend her resignation . 9- FBI BAU Special Agent Elle Greenaway was played by Lola Glaudini, assigned as an expert in sexual crimes, after demonstrating her skills by assisting the team in capturing a pair of killers. In a dangerous mission she panics , compromising the operation and allowing the rapist to walk free.