Chad gained two siblings when he was revealed to be Stefano’s long lost son; half brother, EJ, and half sister, Lexie.
His first love was Mia McCormick; the pair had a daughter, Grace, who died when she was a baby. Chad is currently dating Abigail Deveraux.
The New Kid in Town:
Chad arrived in Salem looking for his old girlfriend, Mia McCormick. He was anxious to reconcile with her, but she wasn’t interested. Chad transferred to Salem High School and took a job at Java Café to get closer to Mia, but quickly realized something odd was going on with his ex. As he tried to find out what path Mia's life had taken while he was away in military school, Chad learned she’d been in rehab. But he didn’t buy it, knowing drugs were never Mia’s thing. Mia fought hard to convince Chad she really was a recovering addict, going so far as to introduce him to her sponsor, Nicole Walker. Chad relented, but deep down knew Mia was hiding something from him.Oh Baby!
One day, Chad over heard Mia talking to her new boyfriend, Will Horton, about a baby and demanded she tell him where their child was. Mia tried to cover, but in time Chad discovered that she did indeed give birth to their baby. He was even more stunned to learn that Mia gave the child to Nicole and her husband EJ DiMera to raise.
Although Mia begged Chad to leave Sydney with Nicole and EJ, he refused and pursued custody of the child. Nicole stunned both Chad and Mia when she revealed she’d switched their baby with Sami Brady's baby girl. Their daughter, Grace, had actually died. Chad and Mia bonded as they mourned Grace’s death, giving Chad new hope that he and Mia might reconcile. When Mia insisted she wanted to remain with Will, Chad began dating Gabi Hernandez. The move brought out Mia’s jealous streak, and she tried to win Chad back. However, Chad soon realized she was playing both ends against the middle: Mia wanted both him and Will. Chad finally walked away from Mia for good.Mama’s Got A Secret Past
Chad became intrigued by his mother's relationship with Will’s grandmother, Kate DiMera. There was obvious tension between the two women and Madeline forbade Chad to hang out with Will, who was now part of the DiMera clan. Chad and Will came to the realization that Kate and Madeline had a secret. Chad was stunned, when Will told him Madeline had been a prostitute. Upon confronting Madeline about her past, she collapsed from a brain aneurysm. Chad’s “father,” Charles, cruelly blamed him for Madeline's death.
A curious Chad began pressuring Kate to tell him more about his mother's past, but she dodged his questions. Kate was torn over whether or not to reveal a huge secret about her deceased friend: the fact that Madeline had had an affair with Stefano DiMera and he was Chad's real father.Welcome to the Crime Family
Chad received a mysterious unmarked envelope in the mail. In it was his birth certificate naming Stefano as his father. Chad confronted Kate about sending it to him. All Kate did was warn him about the dangers of revealing what he'd learned to Stefano. No matter, Chad decided the truth had to come out. He told Stefano he believed they could be father and son. Stefano admitted that he had slept with Chad’s mother. Kate suggested the pair take a DNA test to find out the truth. They did and it was confirmed that Stefano and Chad were indeed father and son. Chad, however, insisted he wanted nothing to do with the DiMeras.
Will and Gabi encouraged Chad to forge a relationship with his new family. Lexie Carver, Chad’s half sister, accepted him with open arms. EJ reached out to Chad, too, going so far as to ask him to be his best man when he married Nicole. Slowly, but surely Chad was becoming a bona fide DiMera.
Falling for Abigail
Chad ran into Abigail Deveraux at Java Café, where she wrongly assumed he and his nephew, Johnny, were father and son. She looked down on a guy Chad’s age having a child, which immediately turned Chad off. In time, Chad and Abigail talked things out and became friends. Their connection hit a snag when Abigail learned Chad was Stefano’s son.
When Chad overheard Abigail tell Will that her parents were divorcing, he promised to keep the news to himself. Chad and Abigail began commiserating about how difficult it was dealing with their parents. It brought them closer together, and they began dating.Mob Wars and Peace Pacts
The young couple’s blossoming relationship was tested as Chad became more involved with the DiMeras and went so far as to move into the family’s mansion. Then, EJ began distancing himself from DiMera business, while Chad became more involved in it. Chad did a complete about face, when he got caught in the crossfire of the DiMera/Kiriakis feud, literally! He was shot by a Kiriakis henchman. Chad prepared to move out of the DiMera manse. Seeing that Chad’s decision was breaking Stefano’s heart and blaming Abigail for turning him against his family, Kate began plotting to break up Chad and Abigail.
Chad and Sonny Kiriakis joined forces to end the feud between their families, summoning Stefano and EJ and Victor Kiriakis and Justin Kiriakis for a meeting. The duo were pleased when kingpins Stefano and Victor finally agreed to make peace. Nevertheless, Chad told Stefano he could never be the son he wanted, as he was determined to lead a good, honest life.