Stella is a tall and slender Filipino-American girl, with tan skin, freckles, black hair that curls up at the back end with two strands of hair standing out, two pairs of eyelashes, and noticeably slanted eyes.
Her main attire consists of a white short-sleeved sweater, with a red star in the middle, a red collar, and red sleeve edges, a knee-long black skirt, white knee-high socks with a red and blue stripe at the top, and green sneakers. She also wears a wristwatch on her right hand and a red hair clip on the back of her head.
In "White Hare", she wore an orange headband with a bow, and had her hair tied up in a bun.
Her name means "star" in Latin.
According to Darin McGowan, Stella is of Filipino descent.
Kevin Sullivan has confirmed that Stella was, in fact, the new girl that was introduced in "White Hare". He states that Stella went through a character redesign during production of "Be Stella My Heart".
She is one of the few human characters on the show with no visible detailing on her teeth.
As of "White Hare" and prior to meeting her friends, she's a new resident in Royal Woods.
Stella is the first non-Loud family member to receive her name on a title card.
Following her proper debut in "Be Stella My Heart", she made only two more appearances in Season 3.
Stella is the only one of Lincoln's friends to have never met Ronnie Anne, due to the former moving in after the latter moved out.
She loves tech and always wants to dismantle electronics and put them back together.