Robby is a nerdy kid who likes to make web-comics. His latest creation is Dr. Maniac, a maniacal supervillain who somehow escapes into the real world! The same thing happens to his other characters: Purple Rage, Scarlet Starlet, and possibly even Robby's imaginary sister Taylor Schwartz. However, Taylor and Scarlet Starlet do not appear alongside Dr. Maniac in HorrorLand.
Robby is twelve years old, Caucasian, tall and thin with long and wild brown hair which is almost blond and blue eyes.
Robby is a geek who really likes to make up stories, especially about Dr. Maniac and is very serious about his comics. He comes up with many ideas for his stories wherever he goes, mainly in the woods, since his parents are nature freaks. He thinks that villains are a lot more interesting and likes to make his main characters villains, rather than making them heroes, but as always, good will always triumph over evil. Robby hates being an only child, which is why he made up Sam and Taylor and is thought to be spending so much time on his computer because he is lonely, but Robby insists that this isn't the case and he just likes to make up stories. Robby also has quite a sense of humor, taking after his father and likes to have a laugh when necessary. He also states that so many jokes are played in his family that it made it hard to believe anything.