Dark Oracle

Lance, Cally's twin brother, prefers video games and comics to real people. Unlike his sister, he is very shy and tends to keep to himself. When he finds himself drawn into the comic world and meets Sage, this self-proclaimed oddball starts to come out of his shell. In the comic book he is the figure Blaze.

Cally Stone, twin sister of Lance, pretty and prides herself on being level-headed. She's also the last person who would believe in a comic book that could warp you into new worlds. When she finds herself surrounded by the supernatural, she's faced with believing that anything can happen. In the comic book she is the figure Violet.

Dizzy is Lance's best friend, and like Lance he shares a passion for gaming and comics. It's no question that high school poses challenges for Dizzy, especially with his crush on Cally. But with a little time he is able to shake his geek persona and become not-quite-cool... but almost. After a while Lance and Cally decide to tell him about the comic book.

Sage works at Gamers Cave Comic Book Store and becomes Lance's girlfriend. She doesn't notice the supernatural events around her, although at one point she and Dizzy are told by Lance and Cally all about the comic book. She and Lance break up in many episodes due to the comic's influence. Vern has often tried to get her from Lance, but never succeeds.

Doyle is the owner of Gamers Cave Comic Book Store. He spends a great deal of time in the back of his store, which also doubles as a meeting place for the secretive club of Necromancers. Lance and Cally have a suspicion that he is somehow connected to the strange comic book.

Omen was turned into a frog by Doyle so he could keep his magic under control. In the first episode of the series, Omen sees Lance and overhears his comment on "how you can learn a lot from a comic". Omen then uses the remainder of his magic to transform a previous comic into Dark Oracle.

When Lance was invited to Doyle's gaming group, Omen escapes from his cage, hiding in Cally's backpack. Omen is unknowingly taken to the Stone household. Cally names him Nemo, getting the name from the comic. He doesn't regain his human form until Lance gives Nemo a kiss (taken from the story of the frog prince) and Omen's curse is lifted.

Cally later meets Omen at school, asking to borrow a pencil, and is instantly smitten. The two befriend one another and work together on a school project. This was all part of Omen's plan to take Cally hostage and lure Doyle into the school. Omen is thwarted once Lance kisses him on the cheek, thus turning him into a frog again.

Omen returns in the last episode, when Cally and Lance lift his curse once more, in order to get rid of Violet and Blaze. He makes an attempt, but fails. He tries to get revenge on Doyle once more at a Masquerade ball, but is confronted by the Stone siblings. They chase him throughout the ball until Omen is alone in a room with nothing but a mirror. He hears the voices of Blaze and Violet and is pulled into the mirror. At the end of the season finale, Violet and Blaze sneer at Omen saying, "Welcome back, Omen".

But Omen makes another appearance in the premiere of season 2. He is being chased by Violet and Blaze in the comic book. They ask him how he entered the other world, proving that Omen himself may have come from the comic. Eventually, Omen makes a deal with Violet and Blaze. Vern summons Omen and releases him from the binds of the Comic Book. When Vern plays a trick on Lance, Omen uses a spell to switch Lance and Blaze into the real world. Omen then decides to help Cally. However, Blaze reveals that Omen made a deal with him, and Cally leaves Omen.

After a plan to rescue Lance fails, Omen reveals his true feelings to Cally. Doyle, Vern and Omen work on a Power of Three spell to summon and kill the Puppet Master (the opposite of Doyle). Once Lance is freed, the Puppet Master attempts to use an erasure spell on Cally. Omen sacrifices his own life for Cally and disappears. Whether he returns to the comic or dies is unknown. There is a possibility he could be alive as someone says "Cally" in a very raspy voice through the mirror after Cally gives her final goodbye to the mirror. Whether this is Omen's voice or not is unknown.

Annie is Cally's best friend. She and Cally fight very often since the appearance of the comic. When they fight, Annie hangs out with Kathleen until they make up again. Annie will support Cally in almost everything. She has yet to learn about the comic book. She doesn't appear in season 2.

Vern is a fellow goth classmate of Lance and Cally. He is neither a friend, nor a true enemy. He always hangs around Simone who might have feelings for him and tries to learn of the powers Omen and Doyle possess. Sometimes he causes trouble for the twins and other times he comes to their aid. Vern saved Lance's life when he was pushed into the mirror by Vern who meant it to be a harmless prank. The outcome was Lance's evil alter-ego taking over Lance's identity, but Vern helped Cally and her friends dispel him from Lance's body.

Emmett starts liking Cally, but because of the comic (and Omen) their relationship ends.