Ambiguously Brown: Wybie is a very pale African-American with brown curly hair. It's possible he's actually mixed-race; his grandmother is more obviously black. In a deleted scene Coraline asks Wybie if his grandmother was Black, Wybie said she was.
Badass Adorable: In the climax, he saves Coraline from being killed by the Other Mother's hand.
Badass Biker: Going with the above trope, Wybie does this while riding his motorcycle.
Nice Guy: He never gets mad or insults Coraline for deliberately miswording his name, tells her about the poison oak she's holding, gives her the "mini" doll of herself, and valiantly comes to her rescue.
Character Exaggeration: In the book, Mr. Bobo simply happens to be Slavic (Russia isn't even mentioned, actually); it's not even implied that he has an accent until Misses Spink and Forcible happen to talk about him near the end of the book. However, the movie makes Bobinsky extremely weird and extremely Russian.
Button Eyes of Evil: The trait shared by all Other World inhabitants. The Uncanny Valley aside, it's the first indicator that the Other Mother, and her world for that matter, aren't all they seem.
Creative Sterility: She can only copy and transform what already exists, hence why there's nothing beyond the garden in her world. It becomes a plot point in the novel when Coraline notices a snowglobe on the mantle, which isn't there in the real world. It's where her parents are being held.
Nice Job Fixing It, Villain: She makes The Other Father, and The Other Wybie too well. They love Coraline and don't want to see any harm come to her, regardless if she instructs them to. They actively resist their creator even at the cost of their own existences.
Her need to gloat over her victory when Coraline says her parents are behind the door between worlds at The Climax is what leads to her opening the door for Coraline, in essence engineering her escape.
One-Winged Angel: Over the course of the movie the Other Mother progressively gets more monstrous. She starts as a copy of Coraline's real mother, then gets thinner, spindlier and overall wicked-looking. By the end of the movie she reveals her true form - a spindly spider-human hybrid with cracked porcelain skin, metal legs and hands with claws made of sewing needles.
Parental Substitute: She acts like this to the children... until she feasts on their souls and then disposes of them.
Please Don't Leave Me: She screams this - alternated with "I'LL DIE WITHOUT YOU!" - at Coraline when she leaves the Other World for the last time.
Self-Made Orphan: Semi-subverted. She has put her Mother to to grave, "And when she tries to get out, I put her back in". So her mother isn't exactly dead, by for all intents and purposes, she is.
Sore Loser: In the book, after Coraline finds the first soul, she sends a strong wind - indoors - to slow her down. She also has no intention of letting Coraline go, whether she wins or not.
Supreme Chef: The foods she creates are stated to be much better than Coraline's father's cooking.