They both seem to have different mouths than other Inklings, as the other Inklings' mouths are their ink color, but Callie and Marie have red mouth insides, like humans. Frank, Allegra (2017-07-03). "Splatoon's art book is filled with concept art, comics and more". Polygon . Retrieved 2023-07-29. a b c d Oxford, Nadia (2017-05-17). "Splatoon 2's Squid Sisters Stories Is Some Tragically Effective Viral Marketing". USGamer . Retrieved 2023-07-26. During a Splatfest, any part of Marie's appearance that is normally green will change to match the color of her Splatfest Team, including the ends of her tentacles.

Frank, Allegra (2016-04-29). "This Splatoon live concert is equal parts weird and wonderful". Polygon . Retrieved 2023-07-26. Although it is known that Callie and Marie are cousins and judging by their appearances, it is assumed that they are the same age. Whritenour, Jacob (2016-01-26). "Splatoon Concert Held this Week". Hardcore Gamer . Retrieved 2023-07-26.

Frequently Asked Questions

In the stage news for Moray Towers, The Squid Sisters reference Pokémon in one of their lines, referring to the phrase 'It's super effective!' and 'I wanna be the very best, like no one ever was' which is one of the lines from the first Pokémon anime opening. The colors of the chairs Callie and Marie sit on in the studio reflect the ink colors of the player's last match, or the colors of the current Splatfest. The main color is the opponents' color, with arrows in the player's team color. Smith, Rebecca (2022-08-11). "Splatoon 3 Campaign: Does it Have a Story Mode?". GameRevolution . Retrieved 2023-07-28.

Ashcraft, Brian (2016-02-01). "Splatoon Characters Make For Good Virtual Idols". Kotaku Australia . Retrieved 2023-07-27. Anarchy Poisons• Anarchy Rainbow• City of Color (2023)• Tomorrow's Nostalgia Today• Soak & Stomp• Deepers Creepers• Opening (Deep Cut)• Fins in the Air• Till Depth Do Us Part• Liquid Sunshine• Big Betrayal• Now or Never! (Deep Cut)• Ageshio Notte Mōteru• Shinsan Name Manta• Daybreaker Anthem• Maritime Memory When the Smallfry amiibo is scanned in the amiibo box, instead of talking to the player like most amiibo, an unknown narrator helps communicate with the Smallfry. Callie also shows great admiration towards Deep Cut, as shown in her dialogue in Alterna, finishing Deep Cut's intro before singing Calamari Inkantation 3MIX.kotakuinternational (2016-07-01). "Splatoon's Final Splatfest Is Already Tearing Everyone Apart". Kotaku Australia . Retrieved 2023-07-27.