Star Butterfly

Star Butterfly is a character from Star vs. the Forces of Evil. She's a princess from the Kingdom of Mewni who got sent to Earth by her family in order to learn how to use her wand.

Role in DJM/PMG
In the DJM, she is the official mascot of the channel, being Gumball Watterson as the second (in PMG, this is somewhat reversed). She frequently hosts in her show, Star Talk and co-stars in DJM News. She also has her own HOTD show called HairStarz.

It was also evidenced in Star Talk, that she already has been to different dimensions, and learning how to understand the languages of those people.

In HairStarz, it was shown that she's very creative when it comes to HOTDs (Hair of the Day).

In PMG, she made her debut appearance in the Valentines' short, Marco Ready For Valentines. She frequently appears in the channel, at least making three guests appearances in Gumball Central, starring in PMG Bloopers, and having her own OOTD Update.

Her major role in the channel was in Star Butterfly Plush Adventures where she appears as a plush character. Instead living in the Diaz household, she instead lives with Miggy7215 in the plush series. There she participates in everyday activities.

In both PMG and DJM, there's a running gag where she says "Useless!" This first occurred in the first episode of Star Butterfly Plush Adventures. She began saying this ever since that episode aired. Although she says it, the word "useless" doesn't occur in DJM much.