On Series Since: 2003 - Present
Full Name: Helen Mills
Profession: High School Teacher, Twin Peaks High School
Martial Status: Dating, Chris Michaels
Previous Relationships: Divorced, Adam Black
Family Ties: Daughter, Dawn Marie; Brother, Casey Mills; Mother, Barbara Mills; Father [deceased]; Reg Mills
Helen lived in White Cove, a small town just outside of Twin Peaks. She was in town at Wild Night when she met Adam Black. The two ended up having a one night stand, despite him being involved with Victoria. Victoria discovered their affair, while suffering from multiple personalities, and tried to kill Helen.
The accident left her with no memory of her past. Adam stuck by her and they soon became engaged.
A furious Victoria, still under the influence of her alter ego, tried to kill Adam and Helen in a fire. They survived and decided to try to regain Helen's memory. Helen started having memories of driving a car away from a bank with Olivia Wilkins next to her. She discovered she was pregnant; Adam rejoiced. They planned to be married on New Yearís Eve, which they did. Olivia introduced herself as a high school friend of Helenís.
Helen believed her, all the while Olivia began drugging Helen to ensure she didn't remember her past. Helen started to have lapses in memory, which she chalked up to her pregnancy. Things continued to get worse however, and Adam voiced his opinion that he didn't trust Olivia and wanted Helen to seek medical attention. She refused. Finally, on a stormy night at the Calimo cabin with Olivia, Olivia induced Helen's labour then knocked her out. Olivia made a mysterious call, then when Helen awoke she was in the hospital. Olivia told her and Adam that their baby girl had died. Helen was devastated; Adam blamed his wife. Turns out, however, Olivia stole Helen's baby and gave her to Cassie! Adam and Helen's grief pulled them apart and Helen moved out of their house together.
She began suffering from nightmares about her baby crying. She did find herself attached to Dawn, Cassie's "baby". To get her mind off her daughter, Helen asked Madeline for help in uncovering her past. Madeline started to edge closer to the truth that Helen was helping Preston & Olivia rob banks. After having another fight with Adam, Helen asked Cassie to go to the Cabin with her for a get away. Cassie agreed and asked Olivia to come as well, knowing that Liv was having guilt pains over the baby switch. At the cabin, Helen started having more memories and Olivia encouraged her to remember making Cassie furious. Cassie ripped the break cord from Olivia's SUV and took Helen home. Olivia and Preston crashed their SUV on the way home and died. Helen was crushed and turned to Adam for support. Soon after Olivia's death, Helen began having memories from the night the baby died. She fainted and Adam rushed her to the hospital. Craig determined that because Olivia was drugging Helen, she fainted because her body was coming out of it's high. Helen was stunned to learn that Olivia was drugging her. Adam wondered if Olivia and Preston were hiding more than just their criminal past. Helen, meanwhile, continued to have memory flahses of that night and still felt attached to Dawn. Cassie asked her to be maid of honor as she and Shane were going to renew their vows.
With Helen taking the memory loss pills again, she found herself having fewer and fewer memories of the night her baby died, which frustrated Adam. He started to have an attraction to one of his students, Mallory Cunningham. At Sofia's funeral, the two shared some cold words with each other but were drawn to Dawn. Cassie was exposed and Adam and Helen were finally reunited with their baby. They both verbally attacked Cassie for her lies and Helen slapped her. Cassie was arrested but she drove her car into the river and was presumed dead. Shane came over and the three adults agreed to let Shane still be a part of Dawn's life. Helen, meanwhile, became obsessed with keeping her daughter safe. This meant she continued to push Adam away and into Mallory's arms. Helen started hearing some weird noises in the house so she bought a gun to keep her and Dawn safe, which Adam was against. Adam and Mallory almost had sex but Adam left leaving Mallory thinking that if she had Adam's baby, he would want to be with her. While Adam and Helen were fighting, Mallory kidnapped the child! With Robbie's help, the couple found Mallory in her childhood tree house. Over the police radio, Helen overheard all the details of Adam and Mallory's near affair and was devastated. Mallory lunged at Adam, but fell to her death. The Black's were reunited with Dawn, despite Helen learning of her husband's near affair with his student. Adam tried to make it up to Helen, but she remained distant from him. Helen also began hearing odd noises coming from her basement. Adam gave Helen another ring and asked her to marry him again. She agreed. She went home early one evening and got spooked when she heard someone trying to break in. She grabbed the gun she had bought and fired when the man entered the house. She was horrified to see that she shot Adam! He survived the bullet, but it felt him paralized. Her long-lost brother, Casey came to town to support Helen in her time of need. Shane was worried that Casey was a con artist, but Helen told him she had a DNA test run proving her relation to Casey. Helen stunned everyone by announcing that Casey was the one who shot Adam. Adam was stunned as he remembers Helen shooting him. Helen and Casey worked on a mysterious plan to keep Adam in the dark.
Adam continued to press Helen for the truth about the night of the shooting. She expressed her fears to Casey about Adam learning the truth. Helen started to drug Adam to keep him from having more memories and it started to work - Adam's memory of the night of the shooting started to turn hazy. Helen, meanwhile, was also growing closer to Shane. She kissed him and he immediately told Natasha. It was then revealed that Helen is really Cassie! Turns out, Cassie survived her car accident and had surgery to make herself look like Helen so she could get closer to Shane and Dawn again. Cassie shot Adam when he came home during the take over; Helen is being locked in a cage in the Black house basement. Helen had mixed feelings when Cassie kidnapped Natasha and put her in the same cage. On one hand, Helen was horrified that Cassie kidnapped someone else, but on the other hand she was relieved to have someone to talk too. Helen and Natasha came up with a plan to try to use Casey to help them escape. It falied, however. The two started to lose hope, when Kim found them! Cassie came down into the basement with a gun; Kim and Cassie struggled, the gun went off and both were shot. Helen and Natasha were saved, however. Helen reunited with Adam. Helen confronted Cassie in the hospital, unaware that Cassie and Adam had sex.
In the New Year, Helen tried to reconnect with Adam and Dawn as a family. Her state of bliss was soon turned upside down when Adam revealed that Cassie is pregnant - and he could be the father of the baby! Helen demanded that they have a paternity test done. Helen confronted Cassie, who laughed at her. The paternity test results came back: Adam is the father of Cassie's unborn child. Devastated, Helen slapped Adam. Helen came around, however, and agreed to help Adam get custody of the unborn child. They got Natasha's help in sueing Cassie for custody. The papers left Cassie reeling. Helen went to confront her rival, and while at the hospital, Cassie went into labour. Natasha soon found Helen knocked out in the hospital room; Cassie had disappeared. Natasha worried that Cassie had replaced Helen again, so Helen got a DNA test to prove she was herself. She agreed to help Adam find his child after the police said they couldn't find Cassie. On New Year's Eve, Helen decided to look into her past to see if she had any family out there.
Adam and Helen went to Madeline to get her to look into Helen's past. Helen was soon frustrated by the lack of results, but Adam told her that these things sometimes take time. Meanwhile, Helen and Adam learned that Shane was putting out a legal notice to Cassie: step forward in 30 days or their marriage would be invalid. Worried that Cassie would come back and try to take Dawn, Helen agreed to send Dawn to Europe. Soon after, Madeline revealed that she had found Helen's parents! Helen went to see them and met Reg and Barbara, but she found that Reg was verbally abusive to her mother. Soon after, Dawn came home and was reunited with her parents. Helen then took Adam and Dawn to visit Reg and Barb. Reg made it clear that he didn't like Adam, which made things tense between Adam and Helen. Adam left the visit early. When Helen got home, she and Adam fought about it. Dawn hated that her parents were fighting. Helen went back to visit her parents and Reg suffered a stroke. She had him moved to Twin Peaks and moved Barb into the family home, much to Adam's chargin. Helen became worried when Dawn became snarky with Adam, unaware her daughter had seen Adam and Natasha having sex.
Helen realized that Reg was verbally abusive to Adam in the new year. She was upset, however, when her father had a set back and suffered another stroke. At the hospital, Helen was further upset by how Reg was treating Barbara. One day while Adam was with Reg, he died. Helen wondered what her husband could have said to her father that caused him to die and lashed out at Adam. He tried to convince her that it wasn't his fault, but Helen blamed Adam for Reg's death. Shortly after, it was revealed that Reg had secret debts. Helen agreed to pay them so Barbara wouldn't have to, which caused Adam more frustrations. He tried to make it up to Helen, but she refused to listen. Barbara then asked Helen to leave Adam. On the night of the storm, Barbara couldn't keep her secret any longer and she revealed that she knew about Natasha and Adam's affair! Helen was devastated and asked Adam and Natasha if it was true. When Adam admitted it, Helen slapped him and Natasha. Helen told Adam she needed space, so he agreed to move out of the house. Barbara tried to comfort her distraught daughter. Adam and Helen then realized that Dawn had run away from home; Robbie found her at the Calimo mansion. Adam and Helen then soon learned that Dawn had been blackmailing Natasha; they were shocked by her behaviour but Dawn called them out on bad behaviour. Helen struggled to forgive Adam, and soon had a chance encounter with Chris.
Helen grew closer to Chris in the New Year, which unnerved Adam. Barbara began to try to convince Helen to file for divorce from Adam, which left Helen feeling confused. At Andy's gala for Reese, Helen was thrilled when Dawn arrived and appeared to be civil to her and Adam. Adam then realized that Barbara was pushing Helen to file for divorce and he told her to butt out. Things soon took a romantic turn between Chris and Helen when they shared a kiss, which Dawn witnessed. Under the influence of being smitten with Chris and Barbara's words, Helen filed for divorce from Adam. Adam got served and confronted her; Helen told him that she wanted to move on with her life. Adam then saw her with Chris and warned Chris about hurting Helen. Chris and Helen, meanwhile, had sex. Helen felt bad afterwards and told him that she needed to go slow. Chris agreed to do that, as Helen supported him through the challenges of trying to locate his biological child with Trenyce. Adam, soon, shocked Helen by revealing that Max is really his son with Cassie Nova! Helen was shocked to learn from Adam that his son was in town and is Max. Helen met Max and together with Adam, they told Dawn about her half-brother. Dawn was shocked that best friend was her family. Helen then confronted Cassie and warned her about not hurting her family again, or else. Helen and Chris continued to grow closer, but Helen bailed on going to Santa Barbara with him for Daisy & Vinny's wedding with everything going on with her family. While he was away, Helen saw Adam with Robin and then with Max and wondered if her family would ever be normal again. Dawn then revealed to Helen that the court ordered her to move back home, which thrilled Helen and Barbara. When Chris returned from his trip, however, Dawn saw her mother and Chris making love. Helen was crushed to learn that Dawn had runaway again. Adam blamed her for Dawn running after he learned about Helen and Chris' affair. Helen then comforted Chris after he was questioned by the police when Frederick was shot. On New Years' Eve, Helen was thrilled when she and Adam got a phone call from Dawn.
Helen was shocked to learn that Chris was questioned by the police regarding Frederick's death. He claimed he was innocent, but when Helen learned of all the evidence against him, she wondered if he was actually guilty. Once he was arrested, Barbara claimed that he was guilty. Helen couldn't help but wonder if she was right, and didn't visit Chris while he was in jail. Soon, he was released and he told Helen how upset he was that she didn't come see him in jail. He realized it was because she thought he had killed Frederick. Helen tried to make it up to Chris. Helen, meanwhile, was thrilled that Dawn was seemingly coming back around to being a part of the family. After the ice storm passed, Dawn held a family meeting in which she announced she is a lesbian. Helen, Adam and Max were supportive, but Barbara refused to accept it. Chris and Helen made up, and he supported Helen with the news. Helen worried that Barbara wouldn't accept it. Soon after, Adam and Helen were shocked when Barbara suggested that they send Dawn to a bible camp!