Donald Trump made 'sexual comments' to Marlee Matlin and Lisa Rinna, 'Celebrity Apprentice' contestant claims

A former Celebrity Apprentice contestant is not mincing words with how Donald Trump allegedly acted toward women behind the scenes.

Richard Hatch, who competed on season 11 of the NBC reality-competition show, alleges in a new interview that the 70-year-old Republican presidential nominee would regularly act inappropriately toward female contestants on the show, including Marlee Matlin and Lisa Rinna.

"Watching him in the boardroom making sexual comments ... to all of the women on the Apprentice, it was obvious that that's just a part of who he is," Hatch claims to People. "It was obvious and it was grotesque. It was blatant and it was frequent. He did it with Lisa Rinna; He did it with Marlee Matlin. He did it with whomever happened to be there at the time."

See photos of Lisa Rinna then and now:

41 PHOTOS
Lisa Rinna through the years
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Lisa Rinna through the years
It’s femme fatale aka #RHOBH @lisarinna and thanks to @hiddencrownhair and @mspriscillanyc we warped #lisarinna to #2018 for tonight’s #WWHL #longhair #hiddencrownhair #juliusmichael #clipinextensions #facebeat #makeup by my girl @mspriscillanyc #glamteam styling products from @sevenhaircare
BEVERLY HILLS, CA - JANUARY 05: Harry Hamlin (L) and Lisa Rinna attend Esquire and the Medavoys host a party to celebrate the Golden Globes, presented by Maserati at Private Residence on January 5, 2018 in Beverly Hills, California. (Photo by Donato Sardella/Getty Images for Esquire)
LOS ANGELES, CA - JANUARY 17: Lisa Rinna is seen on January 17, 2018 in Los Angeles, California. (Photo by SMXRF/Star Max/GC Images)
THE REAL HOUSEWIVES OF BEVERLY HILLS -- 'Season 8 Premiere Party' -- Pictured: Lisa Rinna at the Doheny Room in Los Angeles, CA on December 15, 2017 -- (Photo by: Jesse Grant/Bravo/NBCU Photo Bank via Getty Images)
WEST HOLLYWOOD, CA - DECEMBER 15: Television personality Lisa Rinna arrives at Bravo's 'The Real Housewives Of Beverly Hills' Season 8 Premiere Party at Doheny Room on December 15, 2017 in West Hollywood, California. (Photo by Amanda Edwards/WireImage)
LOS ANGELES, CA - NOVEMBER 28: Lisa Rinna is seen on November 28, 2017 in Los Angeles, California. (Photo by Niceguy/Bauer-Griffin/GC Images)
CULVER CITY, CA - OCTOBER 21: Lisa Rinna attends the Dorit Kemsley Preview Event For Beverly Beach By Dorit at The Trunk Club on October 21, 2017 in Culver City, California. (Photo by Amy Graves/Getty Images)
CULVER CITY, CA - OCTOBER 21: Lisa Rinna and Lisa Vanderpump attend the Dorit Kemsley Preview Event For Beverly Beach By Dorit at The Trunk Club on October 21, 2017 in Culver City, California. (Photo by Amy Graves/Getty Images)
LOS ANGELES, CA - OCTOBER 19: Actress Lisa Rinna attends the Tommy Hilfiger VIP reception and Julien's Auctions on October 19, 2017 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
LOS ANGELES, CA - OCTOBER 19: (L-R) Sisters Delilah Belle Hamlin and Amelia Gray Hamlin and parents/actors Lisa Rinna and Harry Hamlin attend Julien's Auctions and Tommy Hilfiger VIP reception on October 19, 2017 in Los Angeles, California. (Photo by David Livingston/Getty Images)
LOS ANGELES, CA - OCTOBER 05: Lisa Rinna attends the 2017 Awareness Film Festival Opening Night Premiere of 'The Road to Yulin and Beyond' at Regal LA Live Stadium 14 on October 5, 2017 in Los Angeles, California. (Photo by Rodin Eckenroth/Getty Images,)
LOS ANGELES, CA - OCTOBER 07: Harry Hamlin and Lisa Rinna are seen attending TreePeople's an Evening Under The Harvest Moon Charity Gala at TreePeople in Beverly Hills on October 07, 2017 in Los Angeles, California. (Photo by gotpap/Bauer-Griffin/GC Images)
NEW YORK, NY - SEPTEMBER 11: Lisa Rinna and Harry Hamlin attend the Dennis Basso Spring/Summer 2018 Runway Show during New York Fashion Week at The Plaza Hotel on September 11, 2017 in New York City. (Photo by Sean Zanni/Patrick McMullan via Getty Images)
NEW YORK, NY - SEPTEMBER 11: Actress Lisa Rinna attends Dennis Basso fashion show during New York Fashion Week: The Shows at The Plaza Hotel on September 11, 2017 in New York City. (Photo by Cindy Ord/Getty Images For NYFW: The Shows)
NEW YORK, NY - SEPTEMBER 10: Model Delilah Hamlin, Actress Lisa Rinna and Model Amelia Hamlin attend Town & Country Magazine's Modern Swans Celebrationon at The Carlyle, September 10, 2017 in New York City. (Photo by Amber De Vos/Patrick McMullan via Getty Images)
NEW YORK, NY - SEPTEMBER 08: Lisa Rinna attends Harper's BAZAAR Celebration of 'ICONS By Carine Roitfeld' at The Plaza Hotel presented by Infor, Laura Mercier, Stella Artois, FUJIFILM and SWAROVSKI on September 8, 2017 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Harper's BAZAAR)
HOLLYWOOD, CA - JULY 11: Harry Hamlin and Lisa Rinna arrive at the Grand Opening of The Highlight Room at DREAM Hollywood on July 11, 2017 in Hollywood, California. (Photo by Joe Scarnici/Getty Images for TAO Group)
MALIBU, CA - MAY 13: Harry Hamlin, Delilah Belle Hamlin, Lisa Rinna and Amelia Gray Hamlin attend Cindy Crawford and Kaia Gerber host Best Buddies Mother's Day Brunch in Malibu, CA sponsored by David Yurman on May 13, 2017 in Malibu, California. (Photo by Stefanie Keenan/Getty Images for David Yurman)
BEVERLY HILLS, CA - MAY 05: Lisa Rinna arrives at the 24th Annual Race To Erase MS Gala at The Beverly Hilton Hotel on May 5, 2017 in Beverly Hills, California. (Photo by Gregg DeGuire/WireImage)
WEST HOLLYWOOD, CA - APRIL 02: Delilah Hamlin, Amelia Hamlin and Lisa Rinna attend the Daily Front Row's 3rd Annual Fashion Los Angeles Awards - Arrivals at Sunset Tower Hotel on April 2, 2017 in West Hollywood, California. (Photo by David Crotty/Patrick McMullan via Getty Images)
LOS ANGELES, CA - APRIL 02: Delilah Hamlin, Lisa Rinna, Harry Hamlin and Cindy Crawford attend The Daily Front Row and REVOLVE FLA after party at Mr. Chow hosted by Mert Alas on April 2, 2017 in Los Angeles, California. (Photo by Stefanie Keenan/Getty Images for The Daily Front Row)
LOS ANGELES, CA - MARCH 20: Actors Lisa Rinna (L) and Harry Hamlin attend 'Dancing with the Stars' Season 24 premiere at CBS Televison City on March 20, 2017 in Los Angeles, California. (Photo by David Livingston/Getty Images)
WATCH WHAT HAPPENS LIVE -- Pictured: Lisa Rinna -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - FEBRUARY 14: Harry Hamlin and Lisa Rinna attend the Dennis Basso collection during New York Fashion Week: The Shows at Gallery 1 Skylight Clarkson Sq on February 14, 2017 in New York City. (Photo by Mike Pont/WireImage)
NEW YORK, NY - FEBRUARY 13: (L-R) Sherri Hill, Delilah Hamlin, and Lisa Rinna attend the Sherri Hill NYFW Fall 2017 Runway Show during New York Fashion Week at Gotham Hall on February 13, 2017 in New York City. (Photo by Astrid Stawiarz/Getty Images for Sherri Hill)
VENICE, CA - FEBRUARY 08: Actress Lisa Rinna attends the TommyLand Tommy Hilfiger Spring 2017 Fashion Show on February 8, 2017 in Venice, California. (Photo by Jeff Kravitz/FilmMagic)
THE REAL HOUSEWIVES OF BEVERLY HILLS -- 'Reunion' -- Pictured: (l-r) Erika Girardi, Lisa Rinna -- (Photo by: Nicole Weingart/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Lisa Rinna -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
LOS ANGELES, CA - JANUARY 08: Harry Hamlin and Lisa Rinna attend the 2017 Weinstein Company and Netflix Golden Globes after party on January 8, 2017 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)

Lisa and hubby Harry Hamlin posed for photos at the HBO Golden Globes after party and she looked hotter than ever in a dress she dug out from the back of her closet.

This photo was taken on the red carpet at the 2005 Annual Race to Erase MS Benefit gala.
Lisa Rinna NOW (left) and THEN (right). Pretty wild, huh?
Leigh Shapiro, Suzy Hougton and Lisa Rinna during Decades Hosts a Tea for the Carole Tanenbaum Vintage Collection of Costume Jewelry at Decades in Los Angeles, California, United States. (Photo by Jean-Paul Aussenard/WireImage)
DAYS OF OUR LIVES -- 'Winter Heat' -- Pictured: (l-r) Lisa Rinna as Billie Reed, Robert Kelker-Kelly as Bo Brady -- (Photo by: Joseph Del Valle/NBC/NBCU Photo Bank via Getty Images)
Lisa Rinna wearing Gucci during Decades Hosts a Tea for the Carole Tanenbaum Vintage Collection of Costume Jewelry at Decades in Los Angeles, California, United States. (Photo by Jean-Paul Aussenard/WireImage)
Lisa Rinna during Decades Hosts a Tea for the Carole Tanenbaum Vintage Collection of Costume Jewelry at Decades in Los Angeles, California, United States. (Photo by Jean-Paul Aussenard/WireImage)
Actress Lisa Rinna presents an outfit during The Heart Truth?s Red Dress Collection show 01 February 2008 at the Mercedes-Benz Fashion Week in New York. The annual Red Dress fashion show raises awareness about heart disease in women. AFP PHOTO/Stan HONDA (Photo credit should read STAN HONDA/AFP/Getty Images)
DAYS OF OUR LIVES -- 'Winter Heat' -- Pictured: (l-r) Lisa Rinna as Billie Reed, Robert Kelker-Kelly as Bo Brady -- (Photo by: Joseph Del Valle/NBC/NBCU Photo Bank via Getty Images)
LOS ANGELES, CA - MARCH 13: Actress Lisa Rinna attends the Decades for modern vintage shoe collaboration launch with Gilt.com at Decades on March 13, 2012 in Los Angeles, California. (Photo by Tommaso Boddi/Getty Images)
DAYS OF OUR LIVES -- 'Winter Heat' -- Pictured: (l-r) Robert Kelker-Kelly as Bo Brady, Lisa Rinna as Billie Reed (Photo by Joseph Del Valle/NBC/NBCU Photo Bank via Getty Images)
DAYS OF OUR LIVES -- Pictured: Lisa Rinna as Billie Reed (Photo by NBC/NBCU Photo Bank via Getty Images)
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EXCLUSIVE: Maria Kanellis on Donald Trump Firing Her From 'Celebrity Apprentice' for 'Locker Room' Talk

Hatch goes on to claim that with Matlin, "No matter how she responded, no matter how politely, he would push it a step further with comments about her looks, and how she was making him feel, and about what he thought of her, and how happy he would be to do something with her."

"It was a lot of innuendo, far beyond the norm," Hatch says, noting that Matlin, who is deaf, "was with her interpreter, Jack, and I thought, 'Gosh, I wonder if he's comfortable with this?'"

WATCH: Mark Burnett Says He Cannot Release 'The Apprentice' Footage, But Isn't Threatening Litigation Against Leaks

"He did it in front of Ivanka," Hatch alleges. "It didn't matter to him one bit that his daughter was listening in."

See photos of Donald Trump with the creator of "The Apprentice":

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Donald Trump with 'The Apprentice' creator Mark Burnett
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Donald Trump with 'The Apprentice' creator Mark Burnett
Donald Trump and Mark Burnett during NBC 2003-2004 Upfront at The Metropolitan Opera House lincoln Center in New York City, New York USA. (Photo by Jim Spellman/WireImage)
New York real estate mogul Donald Trump (L) and TV producer Mark Burnett talk to reporters, April 8, 2003 in New York City. Burnett is producing a new reality TV show for NBC called, 'The Apprentice,' where the winner will win a six-figure apprenticeship within the Trump Organization. (Photo by Jeff Christensen/WireImage)
Donald Trump, Clive Davis and Mark Burnett during Wyclef Jean Listening Party for His New Album 'The Preachers Son' at Hudson Theater in New York City, New York, United States. (Photo by L. Busacca/WireImage)
LOS ANGELES - JULY 10: Executive Producers of 'The Apprentice' Donald Trump (L) and Mark Burnett speak with the press at the 2004 TCA Summer Press Tour at the Century Plaza Hotel on June 10, 2004 in Los Angeles, California. (Photo by Frederick M. Brown)
LOS ANGELES - JULY 10: (L to R) Executive Producers Donald Trump, Mark Burnett, Vice Presidents of the Trump Organization George H. Ross and Carolyn Kepcher of 'The Apprentice' speak with the press at the 2004 TCA Summer Press Tour at the Century Plaza Hotel on June 10, 2004 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)
LOS ANGELES - SEPTEMBER 19: Producers Mark Burnett and Donald Trump attend the 56th Annual Primetime Emmy Awards on September 19, 2004 at the Shrine Auditorium, in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
Roma Downey, Mark Burnett, Donald Trump and Melania Knauss with guests (Photo by Jon Kopaloff/FilmMagic)
Donald Trump, Billy Bush and Mark Burnett (Photo by Mark Sullivan/WireImage)
BEVERLY HILLS, CA - SEPTEMBER 20: (L-R) Creator/Executive Producer Mark Burnett, Mr. Trump's fiancee Melania Knauss, and businessman Donald Trump attend the Museum of Television and Radio presents 'The Apprentice' at the Museum of Television and Radio on September 20, 2004 in Beverly Hills, California. (Photo by Stephen Shugerman/Getty Images)
Group portrait of, from left, American boxing promoter Don King, businessman Donald Trump, and television producer Mark Burnett as they pose together at the Mar-a-Lago estate, Palm Beach, Florida, 2005. (Photo by Davidoff Studios/Getty Images)
Donald Trump and Mark Burnett during 'The Apprentice' Finale- Arrivals at California Mart in Los Angeles, California, United States. (Photo by Jon Kopaloff/FilmMagic)
Donald Trump and Mark Burnett during Donald Trump Recruiting Search for the Next 'Apprentice' at Universal Studios Hollywood at Universal Studios in Los Angeles, California, United States. (Photo by L. Cohen/WireImage)
Donald Trump and Mark Burnett during Donald Trump Honored With a Star on the Hollywood Walk of Fame at 6801 Hollywood Blvd. in front of Hollywood and Highland in Hollywood, California, United States. (Photo by M. Tran/FilmMagic)
NEW YORK - SEPTEMBER 13: (L-R) Moderator Erin Burnett, Donald Trump Jr., Donald Trump, producer Mark Burnett and Ivanka Trump attend the Paley Center for Media's presentation of 'The Apprentice' on September 13, 2010 in New York City. (Photo by Steven A Henry/WireImage)
Donald Trump and Mark Burnett (Photo by Mathew Imaging/FilmMagic)
TODAY -- Pictured: (l-r) Mark Burnett and Donald Trump appear on NBC News' 'Today' show -- Photo by: Peter Kramer/NBC/NBC NewsWire
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ET has reached out to Matlin and Rinna.

"Marlee Matlin is such a nice person, and Mr. Trump has great respect for her, but this report is completely false," Trump's campaign told People in response to Hatch's claims. "Just take a look at Richard Hatch's record, or lack thereof."

WATCH: Donald Trump Denies Sexual Assault Claims, Again Calls Taped Comments 'Locker Room Talk' in Second Debate

Trump's attitude towards women has come under increased scrutiny following Friday's leak of a 2005 audio tape of the presidential candidate making disparaging remarks about women, including ET's Nancy O'Dell, with then-Access Hollywood host Billy Bush, as well as bragging about having the ability to sexually assault women due to his celebrity status.

While Trump has repeatedly defended his past remarks as "locker room" talk, a re-surfaced clip of the third season of Celebrity Apprentice shows that he fired professional wrestler Maria Kanellis for that exact reason.

MORE: Donald Trump Supporter Calls Hillary Clinton a Hypocrite for Liking Beyonce and the Beyhive Attacks

"He fired me for what I said, and what he said was much worse so," Kanellis shared exclusively with ET in response to the now-infamous "Trump Tape." "My hope is that he gets fired as the Republican nominee."

Watch the video below for more of what Kanellis had to say.

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