Background:

Sierra Serval was born to two unnamed parents. She grew up with several brothers and cousins on a small farm in Ely, Nevada. Her parents were very neglectful to Sierra due to being the only girl in her family, besides her mother and aunt. Her uncle, Larry Serval worked on the railroads to assist his family in financial issues, regarding their farm. He worked as a mechanic for trains at Graves Railways. One day, Sierra was brought to work with her uncle, hoping she could make a living as a train conductor, her dream. While Larry was working on a car of a train, Sierra was allowed to watch her uncle. Suddenly, an unstable coal car came off its tracks and began tumbling towards the two servals. Larry throws his niece to safety only to be smashed into the train by the car, nearly splitting him in half. Traumatized, Sierra attempts to push away the coal car to free her uncle but to no avail. Larry gives Sierra a few words of comfort before dying. Sierra's parents blamed her for her uncle's death, stating she distracted him. Therefore, he couldn't get out of the way in time. Sierra ran away from home that same night. She lived the next 10 years of her life living off the land; stealing food and water from farmers, sleeping on a pile of rocks, and her only source of warmth was her coat Larry had given her. When she was 19, Sierra decides to end her life by sitting on train tracks, waiting for a train to run her over. However, Jenni Graves finds her and convinces her to work for her.

Profile:

Sierra was born on Valentine's Day. She has sandy-colored fur, blonde spikey hair, light green eyes, and dark brown spots. She normally wears a long sleeved white ruffed shirt and a green vest. She also wears black jeans and shoes.

Sierra's uncle died when she was 10. After being blamed for her uncle's death, Sierra ran away and lived as a thief for the next decade of her life before attempting suicide. Three of her older brothers attempted to defend their sister against their parents but the damage had already been done. Sierra is the middle child of her family.

It's possible, Sierra's uncle was a victim of the curse of the Ghost train of Ely.

With regards to her voice, Sierra speaks with a western accent.

In total, Sierra has 15 brothers; 7 of them are older than her, 2 of them were triplets along with Sierra, and the other six are the youngest.

Sierra also has 12 cousins: only 3 of them being females. 7 of her cousins belong to Larry including 2 females.

Sierra is described as being bold, spunky, and feisty as well as zany and opinionated.

She and Marley are close friends as the two are always seen having coffee together.

Other:

Sierra is one of few characters whose last name is a reference to her species.

One of Sierra's ancestors was Buffalo Seval, an old gunslinger and gambler who married a female Indian named Wild Creek.

Sierra is also described as feisty and fun-loving.

Relationships:

Jenni Graves: Sierra and Jenni are close friends, the latter saving the young serval from committing suicide.

Marley Dash: Sierra and Marley adore each other and treat each other like sisters.

Kassian Dash: Sierra and Kassian are on good terms.

Ali Snow: Sierra is Ali's best friend as the two like hanging around each other and having coffee together.

Suzie Egypt: Suzie and Sierra are on good terms.

Bella Vista: Bella and Sierra are on good terms.

Dolly Fisher: Dolly and Sierra are on good terms.

Marcus Jags: Marcus and Sierra are on good terms.

Zib: Sierra first met Zib after she started working for Lackadaisy. The latter instantly fell for the young and attractive serval.

The Marigold Gang: Sierra is on good terms with the Marigold Gang.

The Lackadaisy Crew: Sierra is on good terms with the Lackadaisy crew.

Her parents: Sierra was neglected and mistreated by her parents. However, Sierra states she has made up with her parents.

Her brothers: Sierra's relationship with her brothers is unknown. However, three of them tried defending their sister when their parents blamed Sierra for the death of their uncle.

Larry Serval: Larry and Sierra were very close before Larry was killed. His death is the reason Sierra attempted suicide and why she's afraid of trains.