Lisa Sheridan obit

Halt and Catch Fire Actress Lisa Sheridan's Cause of Death Revealed

She was not on the list.

Lisa Sheridan’s cause of death has been revealed.

More than two months after the actress, who appeared in Invasion and Halt and Catch Fire, died at age 44, details of her death have been disclosed.

Sheridan died of “complications of chronic alcoholism” and the manner was “natural,” the Orleans Parish Coroner’s Office confirmed to PEOPLE on Friday.

According to an autopsy report obtained by Radar Online, Sheridan had a “reported history of benzodiazepine abuse.” Benzodiazepines are “a type of prescription sedative commonly prescribed for anxiety or to help with insomnia,” the National Institute on Drug Abuse website states.

She also suffered a “remote brain injury” as a result of a fall, according to the autopsy.

Additionally, the report reveals that Sheridan was found dead on Feb. 25 with “hyperinflated” lungs, as well as a cyst on her right ovary, Radar reports.

At the end of February, Sheridan’s manager, Mitch Clem, confirmed her death to PEOPLE.

“We all loved Lisa very much and are devastated by the loss we all feel,” Clem told PEOPLE. “She passed away Monday morning, at home, in her apartment in New Orleans. We are waiting for a coroners report on cause of death.”

Clem denied Sheridan had taken her own life: “The family has unequivocally confirmed that this is not a suicide. Any suggestion to the contrary is absolutely, 100% unfounded.”

Some friends of the actress — she starred as Larkin Groves on Invasion from 2005-06 — shared the news on social media, including actress Donna D’Errico, who worked with Sheridan in the 2015 film Only God Can.

“I just received news that my dear friend, actress Lisa Sheridan, has passed away,” D’Errico, who has appeared on Baywatch and Baywatch Nights, shared on Facebook. “She was found Monday morning. I am sitting here stunned. Lisa and I filmed a movie together 5 years ago and became very close on set and remained close friends after filming ended.”

She continued, “It’s so rare to find kind, gentle souls like hers in this industry, this city…even this world. Truly one of the most genuinely sweet and gentle people I’ve ever come across in my life. She brought a sweetness and bright energy to any room she happened to walk into…even in her darker times.”

“I am devastated by this loss. I had just spoken with her and everything seemed great and she seemed happy and in good spirits. Everyone who knew her loved and adored her. Goodbye and goodnight sweet angel…I will miss you terribly,” D’Errico, 50, concluded. “Please send up prayers for her family.”

Filmography

Film

Year       Title       Role       Notes

2000      Beat       Sadie    

2003      Pirates                  Short

2003      Carolina               Debbie

2008      McCartney's Genes         Claudia Robertson          

2012      Tiny Little Words              Woman                Short

2014      Elsa & Fred          Doctor

2014      A Magic Christmas           Holly Carter       

2014      Sick Day                Cam's Mom        Short

2015      Only God Can     Sara      

2015      A Christmas Eve Miracle                Holly Carter       

2017      Only God Can     Sarah    

2018      Strange Nature Kim Sweet          

Television

Year       Title       Role       Notes

1997      Step by Step       Bonnie Episode: "It Didn't Happen One Night"

1998      Any Day Now     Donna Bishop    Episode: "Huh?"

1998–99               Legacy Vivian Winters   Recurring role

1999      Diagnosis: Murder           Lisa        Episode: "The Killer Within"

2000–01               FreakyLinks         Chloe Tanner     Main role

2003      The Practice       Karen Evanson   Episode: "Concealing Evidence"

2004      Las Vegas             Christina Fuentes             Episode: "The Family Jewels"

2004      CSI: Crime Scene Investigation    Crystal Coombs Episode: "Bloodlines"

2004      Monk    Lizzie Talvo          Episode: "Mr. Monk and the Game Show"

2005      Without a Trace                Beth Hobson      Episode: "End Game"

2005      Strong Medicine               Max       Episode: "Clinical Risk"

2005–06               Invasion               Larkin Groves     Main role

2007      The 4400             Shannon              Episode: "Try the Pie"

2007      Moonlight           Julia Stevens      Episode: "Out of the Past"

2007      Journeyman       Dr. Theresa Sanchez        Recurring role

2007      Conspiracy          Samantha Cross                Episode: "Pilot"

2007–08               CSI: Miami           Kathleen Newberry         Episodes: "Dangerous Son", "Raising Caine", "Ambush"

2008      Shark     Marcy Danner    Episode: "One Hit Wonder"

2008      Saving Grace      Michelle               Episode: "It's a Fierce, White-Hot, Mighty Love"

2009      The Mentalist    Dr. Brooke Harper            Episode: "Miss Red"

2009      NCIS       Krista Dalton      Episode: "Child's Play"

2010      Healing Hands   Alice      TV film

2011      CSI: NY Natalie Dalton   Episode: "Exit Strategy"

2011      Private Practice                 Angela Windsor                Episode: "... To Change the Things I Can"

2012      Home Invasion Nicole Johnson TV film

2013      Scandal                 Marion Caldwell               Episode: "Boom Goes the Dynamite"

2013      Perception          Rebecca Abbott                Episode: "Toxic"

2014      Category 5          Ellie DuPuis         TV film

2014      Halt and Catch Fire          Rebecca Taylor Episodes: "I/O", "FUD"

2014      Taken Away        Sarah Martin      TV film

2016      The Fosters         Nicole   Episode: "Highs & Lows"

2016      Still the King       Pamela Episodes: "A Family, a Fair", "Back on Top", "Only the Lonely"

2016      Murder in the First          Laura Clark          Episode: "Daddy Dearest"