The Runner is the first Sprinter class zombie you will encounter. He resembles a shirtless man, with green skin and spiky black hair. He has 25 health, is faster than the player, and deals 5 damage.
Unlike most zombies, the Runner will attack even if he is a screen away. He can see extremely far, and can run at you without notice. However, he has 25 health, which makes him easy prey by himself. In packs, they are extremely hazardous without any explosive, penetrating, or high-damaging weapons.
In all versions of the game, he drops a silver coin.