The characters in Better Off Alone. WARNING! SPOILERS BELOW!
"I'd never lie to you, Vivian...I swear it..."One of the two protagonists of the series, Koops has changed quite a bit from his game self. He's still a bit of a coward, but he knows how to stand up for himself and others. He eventually develops feelings for Vivian. He is a descendent of the Stalwart Koopa of the Four Heroes. In the future, he becomes mayor of Petalburg and is married to Vivian, with two kids. He controls the Diamond Star.
"I promise I'll come back one day...and I never break promises..."One of two protagonists in the series. Vivian is similar to her game counterpart, still timid and frequently apologising. After suffering Beldam's punishments for too long (being a lot more violent then they're hinted to be in-game), she joins Mario. However, it's actually a trick that Beldam forces her to do to get the Crystal Stars. After realizing she can't bring herself to steal them, Vivian joins Mario for real. She controls the Ruby Star, as well as the Amethyst Star.
"Did this talk include holding hands?"A Goomba girl and, apparently, Koops' only real friend before Vivian showed up. She helps Koops out with Vivian when he feels stuck. It is eventually revealed that she is a descendent of the Wise Goomba, Goombertha, of the Four Heroes. She controls the Crystal Star.
"I thought this was supposed to be a relaxing trip...we haven't been here for five minutes and already someone's threatening us."A cloud spirit and one of Vivian's closer friends. She gives Vivian her necklace after the Shadow Queen is defeated, since she was the one who found it back in Boggly Woods. She controls the Emerald Star.
"Ooh, I want 10 Shroom Roasts!"The light blue Yoshi baby from Glitzville. He treats a lot of people pretty horribly, Vivian especially, but he actually cares a lot about his teammates. He is a descendent of Nero of the Four Heroes. He controls the Gold Star.
"What he's doing for Vivian...I find it heartwarming and honorable. Why, I would do the same thing for my darling Scarlette..."Admiral Bobbery, a sailor Bob-Omb from their trip to Keelhaul Key. He joins the team when Vivian is poisoned and Koops stays at camp to watch over her. He controls the Sapphire Star.
"You belong with Mario...he'll never betray you and we'll all stand by your side until the very end. Like true friends should."A white mouse with a heart-shaped tail with excellent thieving skills. She seems to know a lot about Shadow Sirens, the Four Heroes, and a lot more, as well as being able to find information on them all. She reveals herself to actually be Teresa, a.k.a. the Boo Heroine of the Four Heroes. She was pardoned of her death to prevent horrible things from happening, but dies at the end with her mission complete. She controls the Garnet Star.
MarioMario is, for the first portion of the story, a major character. He leads the group around, just like in the game. However, after the Shadow Queen is defeated, he leaves the story completely, as it revolves around the partners rather than him.
"I see you're taken with Vivian..."Vivian's older sister and Beldam's younger sister. She loves Vivian but is sometimes forced to attack her. She sometimes takes care of her whenever she's hurt or hungry. It's implied that Beldam forbid her from talking at the end when she suddenly begins talking. She then goes to live in Shwonk Fortress.
"You will address me by my name, not relations!"The oldest sister of Vivan and Marilyn, Beldam is even worse than in the games. She constantly beats Vivian for failing and blames all problems on her.
The Four Heroes
The Stalwart Koopa
"Alright. I guess you guys win. No point in being a leader when everyone overrules you, anyway..."The leader of the Four Heroes. His real name is Kevin, though his title is the Stalwart Koopa. Despite his rivalry with the Shadow Sirens, he ends up falling in love with Lillian.
The Boo Heroine
"I mean, what would the Four Heroes be without a leader?"One of the members of the Four Heroes. Her real name is Teresa, and she supposedly used to be in a relationship with Kevin. She later becomes Ms. Mowz to prevent Beldam from taking over the world.
The Wise Goomba
"I'd like to get some reading in on our down time, and you're making it really hard to concentrate."Also known as Goombertha, she is another member of the Four Heroes. She spends most of her time reading to gather information about the Crystal Stars.
The Toad Hero
"Just so you know...I used to live in this town..."The Toad Hero, A.K.A. Aaron, is the fourth member of the Four Heroes. He often uses a bow and arrow to fight with, and is usually quiet.
NeroAn original character who is technically not one of the Four Heroes. He is Kevin's friend and steed, being a Yoshi with wings.
"So, what're you gonna do? Kill me in broad daylight? Do you even have the guts?"Another original character and Vivian's sister. She is also known as Princess Flora and watches over Vivian as a baby. Beldam murders her while attempting to murder Vivian.