Sometimes, it seems like Violet can't stand her sister Poppy, but in reality, she cares alot about her.
If you send Violet on the dispatch mission One More Time, she will tell you that she thought she saw Poppy's dog being kidnapped by Morcubus, meaning that it's her fear (which, ironically, happened at the beginning of the game).
When you send Violet on Makoto's dispatch mission "High School Yearbook", she will tell you that she's in high school, meaning that she could be between or is 14-18.
Violet has a deep voice in MySims, MySims Party, and MySims Racing. In MySims Kingdom, MySims Agents and MySims SkyHeroes,Violet has more of a higher pitched/friendly voice.
On the cover of MySims Racing, Violet is seen wearing the outfit she is seen wearing in MySims Kingdom, but in the game she is seen wearing the outfit she wears in MySims.
After Morcubus is defeated by the star racer in MySims Racing, she appears in the cutscene after the Ultimate Cup and it is presumed she quit MorcuCorp.
Violet's first and last name are both after flowers. Nightshade is a flower often associated with witches, while violet is a common flower in the Northern Hemisphere.
In MySims Kingdom on Spookane, the lot of Grandma Ruthie's factory must have been where Violet lived before she moved to Cutopia.
In MySims SkyHeroes, she could have been a member of Specter Squadron, as she has their logo on her hat, but for the game, was made a member of SkyForce.
In MySims Agents, if you send Violet to the Dispatch Mission Snake on the loose!, She will tell you that she has a snake tattoo on her body, but not where, it could be possible that she got it from Justice's Temporary Tattoo Parlor, though she never said if it was temporary or not. In order to get a tattoo, you have to be 18 years old meaning that is probably her age. However, some U.S. states allow people under 18 to get a tattoo with parental permission. (See Wikipedia article Legal status of tattooing in the United States for more information.)
If you send Violet on Jenny's dispatch mission, she will reveal that she and Poppy love Starcruiser X and always watched it together.
If you send Violet on Marlon's second dispatch mission, she will mention Cutopia and Spookane wondering if they were harmed.
Nightshade is the name of a plant in The Sims Medieval that is used in some of the most dangerous poisons.
Violet is the only sim on MySims Kingdom that lived on more than one island.
In MySims SkyHeroes, if you complete the mission 'Ninjas Flipping Out' before '1.23 Jigawatts Required', Violet will tell you that she only joined the SkyForce to protect Poppy.
Violet's description in MySims claims that she had a job as a kitten photographer, which she despised. Ironically, in the DS version of MySims Agents, she owns a pet cat.