Meggy Spletzer is one of the two deuteragonists (alongside Luigi) of the SMG4 series, and the main protagonist of her own spin-off series, Sunset Paradise.
She is a highly competitive athlete in SMG4's Gang who protects herself and her friends from danger. Originally a citizen of Inkopolis, Meggy was obsessed with winning Splatfest, the top Inkling sports competition. Although she started on poor terms with Mario when she escaped from a paint can she was trapped in, they quickly become good friends when he participates in Splatfest with her. As of SMG4: Meggy Moves In, she has moved into the Mushroom Kingdom, now residing in Belmont, Mushroom City, joining SMG4's Gang as one of its most competent and level-headed members. Meggy also plays a central role in the Anime Arc.
The arc ends with her being transformed into a human by The Ink Zuccer 2000, affecting her appearance in all subsequent episodes. For the next few episodes after her forced transformation to a human, Meggy practiced for the final Splatfest to honor Desti, while finding difficulty in being human in SMG4 Movie: Meggy's Destiny. Eventually, she and her Splat Squad successfully defeat Team Killer Ink, finally earning the trophy.
Due to the events in SMG4: War Of The Fat Italians 2020, her Inkling voice was changed, now being voiced by Lizzie Freeman (from 2020 to the 1st half of 2022) and later Elsie Lovelock (as of the 2nd half of 2022), affecting her voice in all subsequent episodes. In Season 10, while still a major character, her roles, and appearances slightly decreased due to the presence of new characters like Hal Monitor and JubJub Boopkins and older returning characters like SMG3 and Steve, but her appearances increased since November after SMG4: Cooking with Mario & Bowser: World Tour. In My New Adventure., Meggy temporarily left the gang in Season 11 to vacation in Port Aurora to figure out what to do next in life.
This makes Meggy the first character in the SMG4 series to receive a proper spin-off series, as Tari was initially created as a teaser for Meta Runner before its release. She later returned to the gang in the episode She's Back! and had decided on becoming a PE teacher.
In Season 12, Meggy and Melony enrolled themselves to Omnia Academy, while she plays an assisting role with the SMG4 Crew in the Cosmology Lore saga. Afterwards, she and SMG4 star as the main protagonists in The Lawsuit Arc, involving Nintendo taking legal action against SMG4's content and channel with Meggy as SMG4's lawyer.
In SMG4: Grand Theft Mario, she officially became a sport coach after graduating from Omnia Academy. Tari, hoping to become braver, became her first student. She has generally seen an increased role in season 13, appearing in almost every episode.