Brian Driscoll, the acting director of the F.B.I., has become an improbable symbol of quiet resistance toward the Justice Department’s campaign to single out F.B.I. employees who investigated the Jan. 6 riot.
To start, Mr. Driscoll’s appointment was an accident. Shortly after President Trump’s inauguration, the White House identified the wrong agent as acting director on its website and never corrected the mistake.
Even if he was not meant to be leading the agency, he has defended the rank-and-file. His refusal to furnish the names of employees, as top Justice Department officials desired, and his insistence that a formal review process be put in place, has spurred widespread support for Mr. Driscoll.
Former and current agents have traded memes and satirical clips celebrating him, offering a rare moment of levity as dismay and deep unease set in across the F.B.I. and as Mr. Driscoll navigates the political perils of Washington and a president who is deeply hostile to the agency.
Known as “Drizz” among his friends, Mr. Driscoll, 45, does not possess the typical G-man bearing of his predecessors, with a bushy mustache and his face framed by long curls. It is a demeanor that has become the focal point of artificially generated memes.
In one, he is depicted as a saint grasping the handbook for agents running investigations. In another, he glances upward, encircled by the words “What Would Drizz Do?” One video, a compilation of scenes from the movie “The Dark Knight Rises,” portrays Mr. Driscoll as Batman doing battle with the so-called Department of Government Efficiency in Los Angeles.
Former agents jokingly called his appointment a providential mistake.
A heated confrontation on Friday with top Justice Department officials left many wondering at the time whether Mr. Driscoll had been fired. Scrutinizing agents and others involved in the sprawling investigation into the Capitol riot would touch a startling number of people: The F.B.I. opened about 2,400 cases that involved about 6,000 intelligence analysts, agents and other employees.
In a defiant email Friday night, James Dennehy, the top agent in the New York field office, warned his staff that the F.B.I. was “in the middle of a battle of our own.” Praising Mr. Driscoll and his deputy, Robert C. Kissane, as “warriors,” Mr. Dennehy asserted they were “fighting for this organization.”
In fact, Mr. Kissane, the top counterterrorism agent in New York, had been widely believed to be in line to be acting director, several current and former agents said, with Mr. Driscoll as the No. 2 official. But when the White House unveiled its website to reflect its staff under the Trump administration, Mr. Driscoll was identified as the bureau’s chief.
Rather than correct the error, the administration left it.
Mr. Driscoll had been in charge of the Newark office for only about a week before he moved to the director’s suite on the seventh floor of F.B.I. headquarters in Washington, thrust into the middle of a political firestorm. Rumors of his dismissal continued to swirl on Friday until the bureau released a statement a day later to confirm that he was still in charge.
Friends and colleagues describe Mr. Driscoll as unflappable. He was a special agent with the U.S. Naval Criminal Investigative Service in San Diego before joining the F.B.I. in 2007. His first assignment was in the New York office, the largest outpost in the bureau, where agents form powerful alliances and deep connections.
In 2011, he passed rigorous tryouts and was selected to the F.B.I.’s Hostage Rescue Team, a highly trained unit formed in the years after the massacre at the Munich Olympics in 1972. Many operators were once in the U.S. military and served in the Joint Special Operations Command.
Rescue team operators, including Mr. Driscoll, have repeatedly deployed to Afghanistan and Iraq during the wars there, embedding with Navy SEAL and Delta Force commandos.
Former members of the rescue team said that Mr. Driscoll was dispatched in 2013 to Alabama, where they successfully rescued a 5-year-old boy who had been taken hostage in a bunker. He was a gunfighter on the blue squadron.
He also took part in a dangerous raid with U.S. commandos in May 2015 in Syria in the hopes of finding clues about Kayla Mueller, a young woman from Phoenix who was kidnapped by the Islamic State. (Ms. Mueller died in captivity.)
During the operation, Delta Force commandos killed a top militant leader and captured his wife. Mr. Driscoll later testified in a criminal trial in Northern Virginia about the evidence he collected at the scene, including a red laptop that the Islamic State had used to force Ms. Mueller to watch jihadist videos.
In 2020, Mr. Driscoll returned to New York, where he supervised terrorism cases in Africa, Western Europe and Canada. He then took over the Hostage Rescue Team in 2022, which handles the most dangerous missions inside the United States, like disabling a nuclear weapon or rescuing a hostage held by a terrorist.
Chris O’Leary, a former top counterterrorism agent in New York who worked with Mr. Driscoll, pointed to his experience.
“What the F.B.I. needs most is a principled leader, and we have one right now in Brian Driscoll,” Mr. O’Leary said.
He added that Mr. Kissane, a West Point graduate, is of the same mold as Mr. Driscoll.
On Friday, Mr. Driscoll notified staff about the Justice Department’s efforts to collect the names of all F.B.I. personnel who worked on the Jan. 6 cases.
“I am one of those employees,” he wrote.
Indeed, Mr. Driscoll took part in the arrest of Samuel Fisher, an adherent of the QAnon conspiracy theory, in Manhattan two weeks after Trump supporters stormed the Capitol.
F.B.I. agents found over a thousand rounds of ammunition and several weapons, including an illegally modified AR-15 rifle and machetes, in Mr. Fisher’s Upper East Side apartment and car. Among them was a “ghost gun,” which is unregistered and thus untraceable.
In 2022, Mr. Fisher was sentenced to three and a half years in prison after he pleaded guilty to a gun possession charge in Manhattan Supreme Court. He also pleaded guilty in federal court to illegally entering the Capitol on Jan. 6.
Mr. Fisher was pardoned by Mr. Trump.
