Rigged with Epic Skeleton.
The skeleton from UE4, if you use UE5, consider this point.
Unreal Engine Project
Supported version: 4.26+
Polycount:
Vert 7.972
Tris 15.366
Animated: (No) Only Demo
Number of Animations: 7 (Demo)
Animation types (Root Motion/In-place): 7 (Demo)
Vertex counts of characters: 7.972
Number of Materials and Material Instances: 4
Number of Textures: 23
Texture Resolutions: Teeth-4k , Body - 3 Udims 4k, Iris-2k, Sclera-2k
UASSET (UnrealEngine, filesize: 799 MB), BLEND (Blender, filesize: 3.02 MB), OBJ (OBJ, filesize: 1.28 MB), FBX (Autodesk FBX, filesize: 1.15 MB), TEXTURES (Textures, filesize: 1.17 GB)