Sadie is a 23 year old woman who grew up in Paleto. She lived with her mother who was a single parent. Her father died a year after Sadie was born. Sadie is an only child.

In school Sadie didn't have too many friends, preferring mostly to keep to herself, and because of her alternative style. When she does open up to people she can be quite bubbly and energetic. In high school, she took a liking to motorcycles and started to save to buy herself one. She eventually found a job apprenticing at a mechanic shop. She worked at the shop for the rest of high school and after until the shop closed.

One day Sadie decided to attend the soft opening of the Livid Skeleton, while there she reconnected with her childhood friend Ophelia Ingram, who was working there as a bartender. Through Ophelia, Sadie became friends with the owner of the Livid Skeleton, Olivia Corder, and her managers and started hanging out with them. Through them, Sadie was introduced to Legion MC who were working security for the bar. Wanting to help with security and get to know more bikers Sadie started hanging around Legion and eventually prospecting, then becoming a full patched member.

During this time Sadie was introduced to the owner of the Livid Skeleton's brother Erik Corder, who she quickly felt a connection and soon started a romantic relationship with. Due to the situation surrounding the start of Sadie and Erik's relationship, Sadie's relationship with him was open on her side, at least for women. After a few intense weeks, Erik proposed to Sadie on top of Mount Chiliad. One day while hanging out with Erik at his work Sadie was being too flirtatious and Erik needed a break so he sent Sadie to go give a ride to a new mechanic he had met from a nearby business, Gabriella Greco, stating that Gabriella might be interested in Sadie. Over the next week or two Sadie only interacted with Gabriella a few times, but Erik talked to her often, talking about Sadie a lot of the time. Gabriella talked with Erik often about open relationships and eventually told him she had feelings for Sadie. Sadie was surprised as she hardly knew Gabriella at this time, but Erik pushed Sadie to spend time with Gabriella and see where it went. Unfortunately, Sadie and Erik lost touch with Gabriella for a few weeks. One day while visiting a clothing store Sadie ran into Gabriella again and caught up before finally exchanging numbers. Soon after Sadie went to a beach party after finding out Gabriella was DJing there. They danced together through the night having a good time. A few days later they made plans to hang out and over the next couple of days started a relationship. Over the next month Sadie and Gabriella became extremely close and after a brief period of jealousy decided to no longer have an open relationship, save for Sadie's fiancé, and moved in together, turning Sadie and Erik's guest room into Sadie and Gabriella's room. Soon after Sadie broke things off with Erik, due to a lack of effort on his part that started before Sadie started seeing Gabriella. A few months later Sadie proposed to Gabriella and they became engaged.

Through friends, Sadie met Grace Stone who she bonded with quickly and after a month adopted.

Gabriella abandoned Sadie a week after she proposed, Sadie held out, hopeful that she would return, until the week before Christmas. The week before Christmas Sadie and her new club started hanging out with Ella Grimm frequently, who they had met a few weeks prior. Ella started flirting with Dylan Strike, Sadie's best friend, who was now separated from his wife, Sadie's other best friend, Karmen. Sadie was sad that her two best friends wouldn't be getting back together but also found herself jealous. The rest of the week became confusing as Ella started flirting with Sadie as well, and the usual flirtatious jokes between Sadie and Dylan stopped seeming like jokes. The week ended with Ella asking Sadie to sleep with her, then convincing Dylan and Sadie to sleep with her at the same time. Then Dylan and Sadie sleeping together. The three of them talked it over the day after Christmas and began a relationship together. A week later Sadie's daughter found out, ad told Karmen. A few weeks later Mohn Nash easily convinced the three of them to get married, originally planning to marry them that night, but they realized they didn't want it to be rushed and held off the plan an actual wedding. The next day the three of them went through their first major issue in the relationship, which saw the three of them end up in the hospital, Sadie, and Dylan with injuries obtained while trying to track Ella down, and Ella overdosing on cocaine. They worked it out by the end of the day and Dylan proposed to Ella for both him and Sadie and Ella said yes.

Sadie's prospecting period with Legion was difficult as she was being introduced to new things and was continuously questioned about whether she wanted to join because of the time she spent away from the club with Erik. She made it through with no major setbacks though and made it through her prospecting period on time. The beginning of Sadie's time as a full-patched member saw her taking part in the fighting against the Ballas. Sadie performed well but mostly flew under the radar as the newest member not getting many chances to prove herself. Soon after Legion came into conflict with the Warlocks, Legion took notice of Sadie's abilities in conflict and granted her the road name "Soul Snatcher." The conflict with the Warlocks and internal issues that popped up during this time saw Sadie get moved up to Enforcer then Road Captain as well as gaining a few club merit patches. Soon after becoming Road Captain Legion was forced into folding their Harmony chapter and Sadie found herself in much higher standing in the club than she expected. Over time Sadie became disillusioned with the club through conflicts within the club, and after getting kidnapped and shot by an enemy of the club decided it was time to turn in her kutte. However before she had the chance she was 86'd from the club while recovering from the shooting, due to the conflicts, and not told directly, instead hearing about it through the grapevine. Sadie and a group of friends got together soon after and started planning for greener pastures.

The greener pastures came together as The Outcasts MC, which developed a unique structure for itself, it had three presidents instead of a president and a vice president. Though internal conflict soon saw one of the presidents leaving the club. The club became public knowledge with a conflict against Legion MC. The club kept a low profile, save for the occasional robbery, until unknowingly being involved in a large gun bust that involved multiple shootings involving over twenty officers. One of which was Brandon Davis the Chief of Police, who Sadie was partially responsible for injuring during the shooting.

While prospecting for Legion Sadie began working Security of the Livid Skeleton, eventually making her way to Head of Security. After the Livid Skeleton's closure, Sadie found work at Uncaged Motorsports as a mechanic in the shop attached to the dealership. Sadie was hired the day the mechanic shop opened. She was quickly promoted to Lead Mechanic with mentions of making her the manager. Later on, the owner of Uncaged Repair ran into possible legal issues and decided to transfer ownership to Sadie. Through her friend, Karmen Strike, Sadie was hired on as the Head of Security for McKenzie Enterprises, an event company. Shortly after being kicked out of Legion Sadie sold Uncaged Repair to Emmy Solvoll and Scott Flanagan. After starting a relationship with her ex-husband, Karmen fired Sadie from McKenzie Enterprises.