Deadlock features a range of character concepts that could enhance its gameplay and narrative. Notable ideas include:
- The Summer Mummy, characterized by floral board shorts and sunglasses, representing summer fun.
- A professional baseball-playing Minotaur with a Scottish accent and a backstory involving the Bermuda Triangle.
- Three gnomes disguised in a trench coat, part of a whimsical mafia called the Cosa Gnomestra.
- A haunted suit of armor that acts as a boxer, engaging in combat while wearing boxing shorts and gloves.
- A large, charismatic spider capable of traversing walls and wielding eight weapons.
- A reimagined Humpty Dumpty as a tragic antihero who rolls into battle.
- The remaining part of the monkey from the tale of the monkey's paw, potentially a sorcerer with magical abilities.
- A North Pole elf advocating for labor rights, creating a narrative around social issues.
- A deer transformed into a sapient being by a cursed amulet, navigating urban life with humor and relatability.