Callum

Callum is the son of Lorraine and one of the main characters of The Park. He is The Hidden Main Antagonist of The Park.

History
It is revealed during the game that Callum was the child of both Lorraine and her late husband, Don. During that time, Lorraine tried to raise Callum as good as any mother could; however, she found Callum's presence to be an irritating one, having loathed the boy from the moment of his birth.

By the events of the game, Callum has left "Mr. Bear"- his beloved teddy bear -in the confines of Atlantic Island Park. Not very confident in his mother's abilities, he rushes into the park, forcing Lorraine to chase him through the entire park. As time drags on, Lorraine's relationship with Callum is shown in concerning detail; very little of what is described is pleasant in any way. It can be assumed from the various bits of dialogue that Lorraine speaks aloud and through various bits of messages that lay strewn throughout the park that Callum suffers under Lorraine's poor care; sharp cuts have appeared on his arms, his personality is disturbed (to say the least) and, if given the choice, Lorraine reveals that she'd gladly leave Callum to die.

The only comfort in this world that Callum knows of (Mr. Bear aside) is the theme park that is Atlantic Island Park. As Lorraine words it, "this is his favorite place in the world". Naturally, Callum runs across the whole park, always out of the reach of the player (though one of his shoes falls off during the journey). Calling for him does nothing to stop him; in fact, he can't be stopped.

It's upon taking the medicine near the end of the game that the player sees Callum change; whenever called for, his responses are more ferocious, saying things like "Stay away!" or "Don't touch me!". Eventually, he stops answering all together; what few times he is seen see him either running or singing in a distorted voice. His last appearance is at the end of the game, where Lorraine stabs him in the head with an ice chipper, presumably killing him.