The FPBI was and is a sub-department of the Federal Bureau of Investigation.  It's agents are armed with and specially trained in the use of advanced weapons, and they are given an extensive education in the nature of what it means to be super human.  And there are some FPBI agents who actually have super powers.

These super powered agents usually possess "low key" abilities, powers which are easily hidden and in most cases are more useful in investigating crime rather than battling super powered criminals.  Many have administrative and/or liason duties.  These agents have been given nick names which over time have stuck:

AGENT A: Agent A's powers allow him to alter his appearance, so he was given the nick-name "Agent Alias".  He can completely immerse himself into a role so completely that he has been forbidden to accept field assignments for "a while" due to an "unfortunate incident" that involved him shooting a fellow FBI agent.

Agent A dislikes being deskbound, but he understands why he is in the metaphorical dog house.  And truth to tell, being under cover can be very stressful.  While he is chomping at the bit to get back out into the field, he is grateful for the rest from field duty.

AGENT E: Samantha "Sam" McHenry exists in mental contact with a (possibly) infinitude of other 'Sams'. The contact exists in three basic modes. The first is background where everyone receives an almost subliminal knowledge that might be useful in any particular situation. Background is much like perusing a vast library or doing a web search; there is little focussed thought involved and it works continuously. The second is conversation where two or more Others are speaking and sharing information consciously. The third is rapport where the minds are joined very closely so that sensory information can be shared and even one's body can be controlled by another. Some elder Others suggest that Samantha's merging with Sam is a fourth mode while others argue it is merely a fluke and unstable happenstance.

From this, Samantha derives abilities that are less flashy than most but can be potent in the right circumstances.

E is the youngest of the paranormal agents.  She has currently been assigned to work with The Freedom League.
 
 
 

AGENT I: A man with uncanny intuition, Anthony Zhen was able to find patterns in seemingly unrelated facts and clues and even draw correct conclusions just by hearing scant infomation.  He hardly read any fiction because he was able to guess the ending by the end of the first chapter (He figured out the secret of The Sixth Sense just from the title).

Agent I had to be very careful how he used his unique insights where criminal investigations were concerned in that cases are built upon the gathering of evidence both circumstantial and physical, and a man able to effectively circumvent such procedures and cut to the chase may be able to solve the crime but not prove it.  So I would often determine who the culprit was and then build a case around them.  Then he would often aid prosecutors in determining the defense attorney's strategy to counter the case he had constructed.

Agent I was slain by Lord Dread's minion with a bomb, he nobly sacrificed his life to save his mother, Karma Doyle.  Doyle now works for the FPBI as a civilian consultant and is now known by Zhen's friends and  colleagues as Agent I.  A more complete bio for Karma Doyle can be found here.
 

AGENT O: "Observation" is Agent O's forte.  She is able to psychically witness events happening from afar through some manner of psychic observation.  The problem is, sometimes the information is inadmissable so like Agent I she has to be very careful in how she employs her abilities.  The ability is useful in situations like monitoring a hostage crisis or acting as a sniper.

Agent O was an effective sniper for years and loves guns.  Big guns.  The bigger the better.
 
 
 
 
 
 
 
 

AGENT U: Being able to see up to five minutes into the most probable future might  sound like a neat power, but like his fellow agents, Agent U (for "upstage") has to be very careful on how he employs it.  Shooting a suspect because he "saw" the man pull the trigger on his hostage just does not cut it.  However, the abilities do lead him to aiding fellow agents into avoiding many an unfortunate outcome.

Agent S/Agent Smith: The former hero (briefly) known as Deathwish, Kelbert Cooper possesses tremendous regenerative abilities rivaled only by heroes such as Redcap.  He is able to heal from wounds that would kill most ment outright.  He is also largely immune to pain.  His now infamous start as a vigilante came to a crashing halt when he was arrested by FPBI agents while interfering with an investigation.  Normally this would have been the start and end of things, but Deathwish redeemed himself when during his arrest the team came under attack by hi-tech villains.  His hands cuffed behind him, Deathwish ran straight at the shooters, absorbing horrific wounds in the process but allowing the FPBI agents to rally and ultimately defeat and arrest the criminals.  In the aftermath Deathwish was offered a job, one he gladly took.  He attended Quantico and passed it's rigorous regimen and was awarded Special Agent status. Agent S ("S" for sponge.  As in bullet sponge.), also sometimes known as Agent Smith often partners with Agent J and are known as The Dream Team...although no one ever calls them that to their faces. While he is able to heal from numerous injuries, Agent Smith is no fool and often wears body armor.  While he was offered a job due to his powers and bravery, Agent Smith has worked very hard to prove that he is more than just a bullet sponge.  He has shown some considerable skill at forensic accounting.

Agent Jones: Sebastian Jones was a promising Washington DC prosecutor.  He was young charismatic, intelligent and ambitious.  He had political aspirations in mind, a senate seat was in his not-too-distant future.  Then in an effort to delay his trial a criminal had Sebastian gunned down in the street.  After six hours of intense operation Sebastian died on the table.  Then he came back.  As a ghost.  Now legally dead, Sebastian's life was over as far as politics were concerned.  All that was left of him now was revenge against the sonsabitches who had done this to him.  But he still loved the law, so instead of becoming a vigilante he offered his services to the FPBI.  He earned a special dispensation from the President of The United States and was able to join. "Agent J" (his nick-name due to a passing resemblance to Will Smith) and sometimes called Agent Jones is unable to die by conventional means, but he is vulnerable to mystic attacks.  He is able to fade through walls, turn invisible, he possesses special senses beyond the range of normal humans.  His favorite tactic is to allow his partner Smith to make a splash, then catch the perps off guard from behind.  Lazarus is an excellent lawyer, and while his prosecutorial days are over his research abilities are still sharp as are his legal instincts.

AGENT Y: "Sometimes Y" began his career during the seventies as the Vigilante Thumper.  With his female sidekick Bambi, they had fought crime in New York and New Jersey and it was him working with Congressman Bill Babcock that helped to get that bill passed.  The elder statesman of the paranormal special agents, he has been in semi-retirement. Agent Y is physically tougher and stronger than normal people, and he ages slower.  In his late fifties, he looks a decade younger.

FPBI Troopers: While many FPBI agents are plain clothes types that conduct forensic investigations, a majority of FPBI personnel consists of soldiers armed with the very latest in hi-tech weaponry and armor.  These Troopers may appear to be some paramilitary force (and the FPBI has been sometimes criticized with bringing "war to the streets of America") and many are recruited from the various branches of the United States military, but each one has also undergone rigorous FBI training courses and are well aware of the importance of exercising proper force against both conventional and paranormal threats.  In the years since the FPBI has been founded not a single civilian has been lost due to "friendly fire" incidents or cases of mistaken identity, something FPBI officials are fiercely proud of.