Brian Austin Green's ex Vanessa Marcil claims he hasn't seen their 16-year-old son in 5 years

Brian Austin Green seems to take great joy in raising his three sons with Megan Fox — now and then, the pair share pix of their brood on social media — but the actor’s ex Vanessa Marcil claims he’s completely cut their son out of his life.

The Beverly Hills, 90210 and General Hospital actress unloaded her secret on Instagram on Sunday. She wrote about the long custody battle she had with Green and Fox over 16-year-old Kassius Green, which she says she ultimately won. However, she said that after it was resolved — and Green was denied full custody of the child — he stopped seeing his son. Kassius has never met his youngest half-brother, Journey, 2, Marcil says.

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As usual I can’t wait to see @lisalingstagram show on custody cases. 12 years ago I was served legal papers and then spent 8 years+ defending myself and my son in custody court in response to his father & his stepmother trying to get full custody(that means I would have seen my son four days a month) and then asking me to pay them child support. They lost that case & a civil case asking me for 200,000. I never spoke publicly in order to protect my then young son from hearing anything negative about his father and from paparazzi that used to follow him & terrify him. I had also never asked for child support of any kind and had never tried to take time away from Kass’ dad seeing him. Ever. In the end they lost all of these court cases. The judge called them all “Frivolous” They always had and still have 50% custody and so still did when court ended as I had and have NEVER asked for full custody. Then, 5 years ago on their own they decided to completely cut Kass out of their lives and his younger brothers’ lives. Kass has never met his youngest brother and is not allowed to know where his bio father, stepmother and three younger brothers live. He has only seen his dad in passing or in public places. Custody cases hurt the children only and the truth shall set us all free. Put the kids first you guys. There shouldn’t be a “more important parent” kids love both parents equally no matter what either parent’s struggles may be. Kass has been truly heartbroken since being cut out of his other families lives with NO explanation. Let’s do better for our kids. Let’s share our stories. #Buddhakids

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After mentioning the This Is Life With Lisa Ling episode about nasty divorce child-custody battles, Marcil launched into her story, writing, “12 years ago I was served legal papers and then spent 8 years+ defending myself and my son in custody court in response to his father & his stepmother trying to get full custody (that means I would have seen my son four days a month) and then asking me to pay them child support. They lost that case & a civil case asking me for 200,000.”

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Megan Fox and Brian Austin Green together
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Megan Fox and Brian Austin Green together
BEVERLY HILLS, CA - DECEMBER 05: Actors Megan Fox and Brian Austin Green speak on stage at the 6th Annual Night of Generosity Gala presented by generosity.org at the Beverly Wilshire Four Seasons Hotel on December 5, 2014 in Beverly Hills, California. (Photo by Charley Gallay/WireImage)
BEVERLY HILLS, CA - DECEMBER 05: Actors Megan Fox and Brian Austin Green attend the 6th Annual Night of Generosity Gala presented by generosity.org at the Beverly Wilshire Four Seasons Hotel on December 5, 2014 in Beverly Hills, California. (Photo by Charley Gallay/WireImage)
BEVERLY HILLS, CA - OCTOBER 11: Actors Megan Fox (L) and Brian Austin Green (R) attend Ferrari's 60th Anniversary In The USA Gala at the Wallis Annenberg Center for the Performing Arts on October 11, 2014 in Beverly Hills, California. (Photo by Paul Archuleta/FilmMagic)
BERLIN, GERMANY - OCTOBER 05: Megan Fox and husband Brian Austin Green attend the Underground Event Screening of Paramount Pictures' 'TEENAGE MUTANT NINJA TURTLES' at UFO Sound Studios on October 5, 2014 in Berlin, Germany. (Photo by Andreas Rentz/Getty Images for Paramount Pictures International)
TORRANCE, CA - SEPTEMBER 16: (L-R) Actors Brian Austin Green and Megan Fox attend The Celebrity Source's Inagural 'Stars 4 Smiles' event at Harbor UCLA Medical Center on September 16, 2014 in Torrance, California. (Photo by Earl Gibson III/Getty Images)
WESTWOOD, CA - AUGUST 03: (L-R) Actors Jeremy Howard, Pete Ploszek, Alan Ritchson, Megan Fox and Brian Austin Green attend the premiere of Paramount Pictures' 'Teenage Mutant Ninja Turtles' block party on August 3, 2014 in Westwood, California. (Photo by Michael Buckner/Getty Images)
WESTWOOD, CA - AUGUST 03: Actors Megan Fox (L) and Brian Austin Green attend the premiere of Paramount Pictures' 'Teenage Mutant Ninja Turtles' block party on August 3, 2014 in Westwood, California. (Photo by Michael Buckner/Getty Images)
NEW YORK, NY - NOVEMBER 21: (EXCLUSIVE COVERAGE) Megan Fox and Brian Austin Green at The Morgan Library & Museum in New York City at the Avon Foundation launch of its #SeeTheSigns of Domestic Violence global social media campaign. (Photo by Dimitrios Kambouris/Getty Images for Avon)
BEVERLY HILLS, CALIFORNIA - JANUARY 13: Actors Megan Fox and Brian Austin Green arrive at the 70th Annual Golden Globe Awards held at The Beverly Hilton Hotel on January 13, 2013 in Beverly Hills, California. (Photo by George Pimentel/WireImage)
BEVERLY HILLS, CA - JANUARY 13: Actor Brian Austin Green (L) and actress Megan Fox attend the 70th Annual Golden Globe Awards Cocktail Party held at The Beverly Hilton Hotel on January 13, 2013 in Beverly Hills, California. (Photo by Kevin Winter/Getty Images)
BEVERLY HILLS, CA - JANUARY 13: Actress Megan Fox (L) and actor Brian Austin Green arrive at the 70th Annual Golden Globe Awards held at The Beverly Hilton Hotel on January 13, 2013 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images)
BEVERLY HILLS, CA - JANUARY 13: 70th ANNUAL GOLDEN GLOBE AWARDS -- Pictured: Actors Megan Fox and Brian Austin Green arrive to the 70th Annual Golden Globe Awards held at the Beverly Hilton Hotel on January 13, 2013. (Photo by Christopher Polk/NBC/NBC via Getty Images)
BEVERLY HILLS, CA - DECEMBER 07: Actor Brian Austin Green and actress wife Megan Fox arrive at the March Of Dimes Celebration Of Babies Luncheon at Beverly Hills Hotel on December 7, 2012 in Beverly Hills, California. (Photo by Jon Kopaloff/FilmMagic)
BEVERLY HILLS, CA - DECEMBER 07: (L-R) Actors Megan Fox and Brian Austin Green and honoree Reese Witherspoon attend the 7th Annual March of Dimes Celebration of Babies, a Hollywood Luncheon, at the Beverly Hills Hotel on December 7, 2012 in Beverly Hills, California. (Photo by Alexandra Wyman/Getty Images For March Of Dimes)
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She continued, “I never spoke publicly in order to protect my then young son from paparazzi that used to follow him & terrify him. I had also never asked for child support of any kind and had never tried to take time away from Kass’ dad seeing him. Ever. In the end they lost all of these court cases. The judge called them all ‘Frivolous.’ They always had 50% custody and still did when court ended as I had and have NEVER asked for full custody.”

Marcil said the relationship between father and son changed “5 years ago” when “on their own they decided to completely cut Kass out of their lives and his younger brothers’ lives. Kass has never met his youngest brother and is not allowed to know where his bio father, stepmother and three younger brothers live.”

She ended her post by writing, “Custody cases hurt the children only and the truth shall set us all free. Put the kids first you guys. There shouldn’t be a ‘more important parent’ kids love both parents equally no matter what either parent’s struggles may be. Kass has been truly heartbroken since being cut out of his other families lives with NO explanation. Let’s do better for our kids. Let’s share our stories.”

Commenters on the post were super-supportive of Marcil. “Thankfully Kass has you,” wrote one. “This kills my heart,” posted another. Some did not pen PG responses, sharing many negative comments about Green and Fox. Yahoo Entertainment has reached out to reps for the couple for comment. However, Green hasn’t publicly said that he’s estranged from his son. Last year he shared a photo of them on social media, marveling at how grown up the boy is.

Green and Marcil fell in love on the set of 90210 and had their only son together in 2002, splitting soon after. Green and Fox started dating in 2004 and married in 2010. Their son Noah was born in 2012, Bodhi in 2014, and Journey — the one Marcil claims Kassius hasn’t met — in 2016.

Green’s lawsuit against Marcil made headlines in 2012. He alleged that he had been loaning Marcil money since 2000 and wanted to be reimbursed. At the time, it was pointed out that Green and Fox, the star of the Transformers franchise, had recently purchased a $3 million home.

As Marcil said, the suit was ultimately tossed out by the judge, who said Green waited too long to pursue legal action. Marcil was told she could seek monetary sanctions from Green. The story from that time did note that the lawsuit was called “frivolous,” but TMZ reported that Marcil’s lawyers used that term.

Marcil is perhaps best known for being a soap star, playing the role of Brenda on GH from 1992 to 2015. She has been candid with her social media followers about her personal struggles, also including suffering a miscarriage — her seventh — earlier this year.

7 PHOTOS
Brian Austin Green and Vanessa Marcil together
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Brian Austin Green and Vanessa Marcil together
Brian Austin Green & Vanessa Marcil at the Private House in Beverly Hills, California (Photo by Steve Granitz/WireImage)
Brian Austin Green & Vanessa Marcil at the Private House in Beverly Hills, California (Photo by Steve Granitz/WireImage)
Vanessa Marcil & Brian Austin Green during Kevin Spacey Party to the Residents of The Motion Picture & Television Fund's Retirement Community at Private House in Beverly Hills, California, United States. (Photo by Gregg DeGuire/WireImage)
Vanessa Marcil & Brian Austin Green (Photo by Jean-Paul Aussenard/WireImage)
Vanessa Marcil and Brian Austin Green (Photo by Barry King/WireImage)
LOS ANGELES - JUNE 7: Actors Brian Austin Green and Vanessa Marcil attend Game two of the 2002 NBA Finals between the New Jersey Nets and the Los Angeles Lakers on June 7, 2002 at Staples Center in Los Angeles, California. The Lakers won 106-83. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this Photograph, User is consenting to the terms and conditions of the Getty Images License Agreement Mandatory Copyright Notice: Copyright 2002 NBAE (Photo by Scott Quintard/NBAE/Getty Images)
LAS VEGAS -- 'Things That Go Jump In The Night', Episode 14 -- Pictured: (l-r) Vanessa Marcil as Sam Marquez, Brian Austin Green as Connor Mills -- Photo by: Chris Haston/NBC/NBCU Photo Bank via Getty Images
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