A dozen defendants pleaded not guilty Monday in the college admissions cheating scandal — three of them linked to bribes allegedly paid by actresses Felicity Huffman and Lori Loughlin.

The court cameos came after Yale announced that a student whose parents were implicated in the scam would no longer be welcome at the prestigious Ivy League university.

"Yale has rescinded the admission of one student as a result of this matter," school spokesman Tom Conroy told the New York Daily News.

During the arraignments in federal court in Boston, former University of Southern California officials Donna Heinel and Laura Janke entered their pleas after they were arrested in Southern California earlier this month and released on bond.

Heinel is the former USC associate athletic director accused of facilitating the admissions of more than two dozen students as bogus athletic recruits — including Loughlin's two daughters.

In a 204-page FBI affidavit, Heinel was named as the person due to receive a $50,000 payment from Loughlin and her fashion designer husband Mossimo Giannulli in late 2016 in exchange for reserving the couple's oldest daughter a spot on USC's rowing team — even though the daughter had no competitive crew experience.

Both Heinel and Janke then participated in a follow-up scheme to get Loughlin's younger daughter, a social media star known as Olivia Jade, admitted to USC with more fake crew credentials, authorities allege.

Giannulli sent another $50,000 payment to Heinel in late 2017 after Olivia Jade was admitted under the scheme, prosecutors said.

Heinel was later caught on a wiretap giving tips on how Loughlin's younger daughter and other students should respond if confronted by anyone over their suspicious admissions.

She said they should describe themselves as "walk-on candidates for their respective sports" who were "looking forward to trying out for the team and making the team," according to prosecutors.

"I just don't want anybody going into (Olivia Jade's school) you know, yelling at counselors. That'll shut everything — that'll shut everything down," she purportedly said during the call.

Igor Dvorskiy also appeared Monday and pleaded not guilty. He allegedly handled the paperwork that made it possible for Huffman's daughter to take her December 2017 SAT at his center in West Hollywood instead of her high school.

The move allowed a paid proctor to administer the test and fix answers to inflate the final score, authorities allege. Ultimately, Huffman's daughter received a score of 1420 on the SAT, an improvement of some 400 points over her prior PSAT score, according to the FBI affidavit.

In exchange for the service, Huffman paid $15,000 to a sham charity set up by the scam's admitted mastermind William "Rick" Singer, prosecutors said.

Dvorskiy was paid a portion of Huffman's money along with fees collected from other families who sought similar help with cheating at his center, prosecutors said.

The other defendants in court Monday were two of Singer's employees, a second testing center operator, the owner of a private tennis academy in Texas and several college coaches.

All 12 were previously charged with conspiracy to commit racketeering.

Two of the coaches were from USC. Ali Khosroshahin was the former women's soccer coach, and Jovan Vavic ran USC's water polo program.

Former Georgetown tennis coach Gordon Ernst, who was a personal coach for former first lady Michelle Obama and her daughters, pleaded not guilty after officials said he accepted $2.7 million in bribes to admit a dozen students to the elite school as recruited athletes.

Wake Forest women's volleyball coach William Ferguson and newly resigned UCLA soccer coach Jorge Salcedo also entered pleas after prosecutors said they each accepted $100,000 in kickback money to admit female students as their recruits.

Federal prosecutors previously said Rudolph "Rudy" Meredith, Yale's former women's soccer coach, was paid $400,000 to add a Yale applicant to the team while knowing she didn't play competitive soccer.

Meredith agreed to plead guilty in the case and was cooperating with prosecutors, officials said.

The 50 parents already charged in the scandal have not yet appeared for their arraignments. A federal judge in Los Angeles previously ordered Loughlin, Giannulli and Huffman to appear in Boston on Friday.