The UE5 Manny Skeleton, Explained
By the Cosindra team · Updated November 2, 2026
Yes, Manny and Quinn use the same rig: both UE5 mannequins are skinned to one skeleton asset, SK_Mannequin, with the same bone names and hierarchy, so any animation made for one plays on the other without retargeting. Only the meshes and body proportions differ.
Manny and Quinn are the two mannequins that ship with Unreal Engine 5, but the name people actually care about is the skeleton underneath them. That skeleton is the de-facto standard target for UE5 animation: understand it and the phrase "Manny-compatible" stops being marketing and starts being the property that decides whether an animation pack works on your character in one click or after an afternoon of retargeting.
Get Manny: the Third Person template or the free Fab pack
Manny ships with Unreal Engine 5. Create a project from the Third Person template, or add the template to an existing project with Add, then Add Feature or Content Pack, then Third Person. SKM_Manny, SKM_Quinn and their skeleton, SK_Mannequin, land in Content/Characters/Mannequins/Meshes.
Epic also lists a free Mannequins Asset Pack on Fab: Manny and Quinn rigged with Control Rigs you can keyframe in Sequencer. On October 31, 2026 the listing named Unreal Engine 5.0 to 5.6 and said the mannequins use the same skeleton and Control Rig as MetaHumans. On UE 5.7 or 5.8, the template route gives you the mannequins in your own engine version.
- Jump to the full bone list: every SK_Mannequin bone, region by region
- Mannequins Asset Pack on Fab: free, by Epic Games, read on October 31, 2026
Export the Manny FBX for Blender
- In the Content Browser, open Content/Characters/Mannequins/Meshes, right-click SKM_Manny (or SKM_Quinn) and choose Asset Actions, then Export.
- Save it as FBX. The file carries the mesh and the SK_Mannequin bone tree with every name on this page.
- In Blender, use File, then Import, then FBX. Unreal works in centimetres and Blender in metres, so check the armature's scale before you edit, pose or weight anything.
- Keep the original asset in Unreal. When an edited copy comes back, import it choosing SK_Mannequin as the skeleton, and if the importer refuses it, compare the bone names with the list below.
What Manny and Quinn are
Manny (male) and Quinn (female) are UE5’s default mannequin characters, used by the engine templates and most tutorials. They share one skeletal structure, the UE5 mannequin skeleton, which evolved from the long-lived UE4 mannequin with refinements to proportions and additional helper bones.
What "the skeleton" actually contains
- A standard humanoid bone hierarchy (pelvis → spine chain → clavicles/arms/hands, thighs/legs/feet) with consistent, well-known bone names.
- Finger bones for full hand animation.
- IK helper bones (foot and hand IK targets) used by the engine’s animation features like foot placement.
- A root bone at the origin: the anchor for root-motion animations.
The bone hierarchy, region by region
The exact names matter: retargeting profiles, animation packs and attachment code all reference them. This is the UE5 mannequin skeleton grouped by region:
| Region | Bones |
|---|---|
| Core | root · pelvis · spine_01 to spine_05 · neck_01 · neck_02 · head |
| Arms (×2, _l/_r) | clavicle · upperarm · upperarm_twist_01/02 · lowerarm · lowerarm_twist_01/02 · hand |
| Hands (×2) | thumb_01 to 03 · index/middle/ring/pinky: metacarpal + _01 to 03 each |
| Legs (×2, _l/_r) | thigh · thigh_twist_01/02 · calf · calf_twist_01/02 · foot · ball |
| IK helpers | ik_foot_root · ik_foot_l/r · ik_hand_root · ik_hand_gun · ik_hand_l/r |
What changed from the UE4 mannequin
UE5’s skeleton is an evolution of the UE4 mannequin, not a rename, and the differences are exactly why UE4 animations don’t just drop in:
| Feature | UE4 mannequin | UE5 Manny/Quinn |
|---|---|---|
| Spine bones | 3 (spine_01 to spine_03) | 5 (spine_01 to spine_05) |
| Neck bones | 1 | 2 (neck_01, neck_02) |
| Twist bones | single per limb segment | paired (…_twist_01 and _02) |
| Finger metacarpals | none | one per finger |
| Result | The older, simpler rig | smoother deformation; retarget required between the two |
The bone that carries the weapon (a field note)
A practical detail that costs people real debugging time: if you attach a rifle to hand_r it will look correct in the viewport and wrong the moment a rifle animation set plays: the grip drifts. On the Epic rig, weapon-handling animation sets drive ik_hand_gun, a dedicated helper bone under ik_hand_root. Attach the weapon there and the whole rifle animation family (aim, fire, reload) positions it correctly. We hit this building an armed NPC with Cosindra and the fix was a one-line change of attach target.
Why compatibility is the whole game
Animations in Unreal are authored against a skeleton. If your character shares the mannequin skeleton (or a compatible one), every animation targeting it (the engine’s locomotion sets, the thousands of packs on Fab and the marketplace, tutorial assets) plays on your character directly. If it doesn’t, each of those animations must pass through the IK Retargeter first. Compatibility converts an entire ecosystem of ready-made motion into drop-in content.
- Free UE5 animations on the Manny skeleton: 10 FBX animations made on SK_Mannequin, free in every take with a free account, and the best take of every other gallery motion, to try on Manny, Quinn or your own Manny-compatible character
How to check whether a rig is compatible
- Compare the bone hierarchy and names against the mannequin skeleton in the engine (open any template’s SK_Mannequin and inspect).
- Try assigning a known Manny animation: if it plays cleanly, you’re compatible; twisted limbs mean hierarchy or orientation differences.
- Check for the IK helper bones if you rely on engine IK features; some third-party "compatible" rigs omit them.
Put your own character on the Manny skeleton
Either build it manually in a DCC tool by matching the mannequin hierarchy and naming (very doable, mostly tedious) or use a rigging tool that targets the skeleton natively. RigMaster does the latter in the browser: upload your humanoid mesh, place guide markers, and the FBX you download is rigged to the Manny-compatible skeleton, so Manny/Quinn animation packs play on it without a retargeting step.
- RigMaster: rig an unrigged humanoid GLB to SK_Mannequin from 18 markers you place, 15 credits a rig
- Mixamo bone names next to Manny and Godot: which Manny bone each Mixamo bone corresponds to, and which have no match
- MetaHuman to Manny: playing Manny animations on a MetaHuman and back
- AccuRIG vs Mixamo vs RigMaster for UE5: which auto-rigger lands on this skeleton and which needs the IK Retargeter
- Best AI for Unreal Engine 5, compared by job: rigging, motion, Blueprints, terrain and materials, with a free pick for each
Frequently asked questions
Where can I download the UE5 Manny FBX?
From Unreal Engine itself: add the Third Person template content to a project, right-click SKM_Manny in Content/Characters/Mannequins/Meshes and choose Asset Actions, then Export, to save an FBX you can open in Blender. Epic also lists a free Mannequins Asset Pack on Fab with Manny, Quinn and their Control Rigs; on October 31, 2026 the listing named Unreal Engine 5.0 to 5.6.
Do MetaHumans use the same skeleton as Manny?
Epic's Mannequins Asset Pack listing says the mannequins use the same skeleton and Control Rig as MetaHumans. In a project, though, a MetaHuman body is driven by its own skeleton asset, metahuman_base_skel, with MetaHuman proportions, so Manny animations reach it through Retarget Animations or a compatible skeleton setup. Our MetaHuman to Manny guide walks through both.
Are UE4 mannequin animations compatible with UE5 Manny?
Not directly: the skeletons differ. UE5 ships with retargeting support that makes UE4-to-UE5 animation reuse a well-trodden, mostly automated path, but it is still a retarget, not a drop-in.
What is the difference between Manny and Quinn?
Body proportions and mesh: they are two characters on the same skeletal structure. Animations targeting the skeleton play on both.
Which bone should I attach weapons to?
For anything driven by rifle/pistol animation sets, ik_hand_gun, because that is the bone Epic’s weapon animations actually position. hand_r works only for props that no animation set repositions.
Do Mixamo animations play on the Manny skeleton?
Not directly: Mixamo uses its own rig and bone names, so you retarget once with the IK Retargeter (or rig the character as Manny-compatible from the start and use UE-native animation packs instead). See the Mixamo-to-UE5 guide for the full path.
Do Manny and Quinn use the same rig?
Yes. SKM_Manny and SKM_Quinn are two skeletal meshes on one Skeleton asset, SK_Mannequin, in the Characters/Mannequins folder of the UE5 templates. Same bones, same names, same hierarchy, so an animation sequence or Animation Blueprint made for that skeleton runs on either character with no retargeting.
What is the UE5 mannequin skeleton called, and where do I find it?
SK_Mannequin. Add the Third Person template content to a project and it sits in Content/Characters/Mannequins/Meshes next to SKM_Manny and SKM_Quinn. Open it in the Skeleton Editor to see the full bone tree, or pick it as the skeleton when you import an FBX that already uses the same bone names.
Keep reading
How to Retarget Animations in UE5 (IK Rig + IK Retargeter)
How to Rig a Character for Unreal Engine 5 (Three Ways Compared)
Mixamo to Unreal Engine 5: The Workflow, the Gotchas, and When to Skip It
Mixamo bone names, with the UE5 Manny and Godot names side by side
MetaHuman to Manny: share animations between MetaHumans and the UE5 mannequins