Creep

"We call him the Creep! Remember? I wanted to kill him! Stick a knife into his heart! All those tests - making me feel like I was a monster. He was the monster! There it is. You're not afraid of the Creep, are you?"

- A younger Paxton to his older brother.

The Creep is a supernatural manifestation of the memory of Harlan Wade, and it is the main antagonist of F.E.A.R. 3. It haunts the Point Man and Paxton Fettel numerous times throughout the game, with the ultimate goal of destroying them.

F.E.A.R. 3
Where this creature came from and why it wants the two brothers dead is unknown, though it is hinted that it desires their and their mother's power for its own. It's possible that a combination of Alma Wade's psionic power, bad memories and fears have unintentionally conjured the Creep and its violent behavior into existence. The only clear fact is that it even frightens Alma, which is a testament to the Creep's power. During several hallucinations, Alma reverts to her younger incarnation and cowers or runs in fear from the Creep.

The brothers are often hunted by the Creep as they advance towards their mother. They manage to resist it until they finally face their memories of their childhood spent with Harlan Wade. Only after all of their memories are destroyed does the Creep stop chasing them. The brothers then fight a giant manifestation of the monster, which peels away its visage in its last moments to reveal Harlan's face, just before being destroyed.

The regular Creep is encountered in all Intervals except for Interval 06, and will drag the player into its nightmare world. However, starting from Interval 05, the Creep will physically attack the player throughout the game. In these instances, the player has to shoot it to keep it from attacking. It will never die, however, and it will temporarily leave when being shot. During these instances, the player's health will not regenerate when attacked until they escape from the monster's boundaries. As the brothers get closer and closer to Alma, the Creep attacks much more often. The player will hear fast approaching footsteps when the Creep is about to attack.

The Giant Creep is encountered only at the end of Interval 08, acting as the game's final boss. It is so large that its mouth can swallow the brothers. Its weak spot is located in its throat, in the form of a glowing red spot. It can only be harmed when its mouth is opened, exposing the weak area. It has three ways of attacking the player; all of which do heavy damage. It can bash the player with its fists, breathe a wave of fire from its mouth, and call down ghostly Replica Troopers to fight against the Point Man and Paxton Fettel.