A highly successful researcher who frequently skirts disciplinary action. His specialties are biochemistry and robotics. He rarely appears in public spaces. For a certain reason, he has become a dog-human. He has conducted numerous high-level classified cross-experiments aimed at creating useful items through anomalous means, most notably Project Olympia. He has nearly died several times. Due to his canine body and uncertain lifespan, his work productivity has significantly decreased. Many projects he participated in are currently dormant. He is an eccentric. His intelligence remains intact, and he is capable of speech and walking.

Due to a certain incident, his body temperature became -7 degrees Celsius, and he dresses for winter even in the summer because he is always cold. He is Gears' assistant and has a notably negative personality. Although he has worked at the Foundation for quite some time, his personality has prevented him from being promoted, leaving him at Level 2. He specializes in SCP research, mechanical engineering, weapon development, emergency security matters, and paperwork. He hangs out with Professor Crow by practicing marksmanship.

SCP-1023-ARC The Broken Telekill Blade Object Class: Safe Type: Object SCP-1023 is a crude blade approximately 80 cm long and 6 cm wide, composed of SCP-148. The blade is broken about 5 cm from the hilt due to continuous combat in the field. Dr. A. Clef utilized this weapon during Incident 239-B. There are several unusual facts about this object that warrant further examination: How it was constructed and composed. How Dr. Clef was able to parry the attacks of Dr. Kondraki, who is trained in fencing, using such a heavy and crudely shaped sword. Where it was stored prior to the incident. Camera footage only captured Dr. Clef holding it during his duel with Dr. Kondraki. SCP-148 Telekill Alloy Object Class: Safe Type: Object A teal-colored ingot composed of an unknown element. If armor is made using this, it can block mental attacks. However, it has no effect on memetic SCPs. As a side effect, prolonged exposure leads to a gradual decline in linguistic abilities.

A man hired by the SCP Foundation as a photographer. He wasn't particularly prominent when he first arrived, but starting with his handling of SCP-408, he created 33 weapons by combining SCPs with armaments. He has an artistic, chaotic, paranoid, antisocial, and malicious personality. He was famous for treating others ferociously and reprimanded junior or new Foundation staff to the point of abuse. He is Clef's rival and engages in sword fights with Crow.

SCP-244-ARC Egg Walker Object Class: Euclid Type: Mechanical The object is a large spherical bipedal device 1.35 meters in diameter, with the top quarter cut off and a simple cockpit attached in its place. The subject has two pairs of arms capable of grasping objects; each arm has six fingers and two thumbs capable of very delicate work. Parts of the clockwork, piping, wiring, and hydraulic machinery are exposed on the object's external chassis. SCP-244 is a robot created by repeatedly mixing various SCPs and processing them through SCP-914. It possesses monstrous strength that defies the laws of physics. It has various functions, such as playing board games with people, dispensing cold beer, firing a minigun, and translating information corrupted by SCP-732 into English.

SCP-122-D The Large Dog Object Class: Decommissioned Type: Animal A giant dog with wings. It is intelligent enough to speak and consumes luxury goods. It was decommissioned after being hit by the crystal module of SCP-244-ARC.

Description is in the Lorebook. He went on a rampage claiming he would decommission SCP-239 but was stopped by Kondraki, Gears, and Crow.

SCP-226-D Chrono-Komodo Object Class: Decommissioned Type: Animal A living statue in the shape of a Komodo dragon made of obsidian. It has the ability to rewind time to the moment it left its original nest if it ever moves away from it. It was decommissioned when Crow shot it at the firing range, mistaking it for a target after it escaped its containment cell.

A female humanoid robot created through Crow's Olympia Project (a project to create artifacts using SCPs). Crow uses her as a scoreboard during shooting matches. She calls Crow 'Father'.

SCP-040 Evolution's Child Object Class: Active Type: Humanoid SCP-040 is a young girl who can evolve living organisms into different creatures by manipulating their genetic traits at will. The resulting creations are referred to as SCP-040-1, and they show intense loyalty to SCP-040. SCP-040 bears no ill will. Crow intended to use her in the Olympia Project, but the plan was canceled due to the risks involved.