Accused White House Correspondents’ Dinner gunman Cole Allen was part of a picture-perfect suburban family of high-achieving scholars guided by a church-leader dad.

Allen — a 31-year-old engineering graduate from prestigious Cal Tech — has three siblings with even more impressive resumes and lived with his parents in a neatly kempt home in Torrance, Calif.

His kin are reportedly shocked and alarmed by his extremist, anti-Trump rhetoric, which surfaced after he allegedly tried to attack President Trump and other senior administration officials at the ritzy DC gala Saturday.

His sister Avriana, 27, recounted his “radical” statements to federal investigators, while his brother called police about a chilling manifesto he allegedly sent the day he tried to storm past White House security with knives and guns.

Allen’s brother, Gabriel, studied engineering at the elite Webb Institute in Glen Cove on Long Island, where his projects included designing Navy vessels, according to materials from the school’s website.

His graduation page said he was bound for the maritime engineering firm Thayer Mayan.

Gabriel married in 2025, and he and his wife may have a baby on the way this year, according to a gift registry with their names created exactly one week before the attack.

Avriana, one of Cole’s two sisters, studied journalism and statistics at the prestigious Northwestern University.

She worked as a reporter for CalMatters, where she helped build their 2021 recall election guide.

She later joined the Pew Research Center as a junior engineer.

The baby of the family, Stephanie, 23, studied physics at Harvey Mudd College in Claremont, Calif., reports said.

She later joined the National Accelerator Laboratory at Stanford University, where she researched dark matter and energy-based cancer treatment.

Cole’s father Thomas Allen has been a leader at their local Grace United Reformed Church, according to public records. The church declined to speak to reporters after Saturday’s violence and took down its leadership page.

The suspect — a self-styled “friendly federal assassin,” according to his alleged manifesto — stayed close to home.

He was employed by C2 Education, a tutor and test prep company, and named “Teacher of the Month” in December 2024, according to social-media posts.

He graduated from the California Institute of Technology with an engineering degree in 2017 and earned a master’s in computer science before dabbling in video-game design and released his own game on Steam in 2018.

One of Cole’s students, Max Harris, a high-school senior, told the New York Times that he never felt anything amiss.

“He seemed like a completely average guy. … Like, I never would have expected anything like this from a guy like him,” Harris said of Cole.

But simmering beneath the surface of this seemingly well-adjusted math whiz was violent vitriol for the president and his administration, prosecutors claim.

“I am no longer willing to permit a pedophile, rapist, and traitor to coat my hands with his crimes,” Cole’s alleged manifesto reads, an apparent reference to Trump.

It includes a thank-you to “my family, both personal and church,” along with a theological defense of the assassination attempt to people who might tell him to “turn the other cheek.”

The manifesto ends with: “Stay in school, kids.”