diff --git a/components/nif/controller.cpp b/components/nif/controller.cpp
index 903cf7710c..930ce4fa0d 100644
--- a/components/nif/controller.cpp
+++ b/components/nif/controller.cpp
@@ -122,11 +122,13 @@ namespace Nif
             mStringPalette.read(nif);
         else if (nif->getVersion() >= NIFFile::NIFVersion::VER_BGS && nif->getBethVersion() >= 24)
         {
-            uint16_t numAnimNotes = 1;
             if (nif->getBethVersion() >= 29)
-                nif->read(numAnimNotes);
+                mAnimNotesList.resize(nif->get<uint16_t>());
+            else
+                mAnimNotesList.resize(1);
 
-            nif->skip(4 * numAnimNotes); // BSAnimNotes links
+            for (auto& notes : mAnimNotesList)
+                notes.read(nif);
         }
     }
 
@@ -793,4 +795,92 @@ namespace Nif
         mInterpolator.post(nif);
     }
 
+    void NiBSplineInterpolator::read(NIFStream* nif)
+    {
+        nif->read(mStartTime);
+        nif->read(mStopTime);
+        mSplineData.read(nif);
+        mBasisData.read(nif);
+    }
+
+    void NiBSplineInterpolator::post(Reader& nif)
+    {
+        mSplineData.post(nif);
+        mBasisData.post(nif);
+    }
+
+    void NiBSplineFloatInterpolator::read(NIFStream* nif)
+    {
+        NiBSplineInterpolator::read(nif);
+
+        nif->read(mValue);
+        nif->read(mHandle);
+    }
+
+    void NiBSplineCompFloatInterpolator::read(NIFStream* nif)
+    {
+        NiBSplineFloatInterpolator::read(nif);
+
+        nif->read(mOffset);
+        nif->read(mHalfRange);
+    }
+
+    void NiBSplinePoint3Interpolator::read(NIFStream* nif)
+    {
+        NiBSplineInterpolator::read(nif);
+
+        nif->read(mValue);
+        nif->read(mHandle);
+    }
+
+    void NiBSplineCompPoint3Interpolator::read(NIFStream* nif)
+    {
+        NiBSplinePoint3Interpolator::read(nif);
+
+        nif->read(mOffset);
+        nif->read(mHalfRange);
+    }
+
+    void NiBSplineTransformInterpolator::read(NIFStream* nif)
+    {
+        NiBSplineInterpolator::read(nif);
+
+        nif->read(mValue);
+        nif->read(mTranslationHandle);
+        nif->read(mRotationHandle);
+        nif->read(mScaleHandle);
+    }
+
+    void NiBSplineCompTransformInterpolator::read(NIFStream* nif)
+    {
+        NiBSplineTransformInterpolator::read(nif);
+
+        nif->read(mTranslationOffset);
+        nif->read(mTranslationHalfRange);
+        nif->read(mRotationOffset);
+        nif->read(mRotationHalfRange);
+        nif->read(mScaleOffset);
+        nif->read(mScaleHalfRange);
+    }
+
+    void BSTreadTransform::read(NIFStream* nif)
+    {
+        nif->read(mName);
+        nif->read(mTransform1);
+        nif->read(mTransform2);
+    }
+
+    void BSTreadTransfInterpolator::read(NIFStream* nif)
+    {
+        mTransforms.resize(nif->get<uint32_t>());
+        for (BSTreadTransform& transform : mTransforms)
+            transform.read(nif);
+        mData.read(nif);
+    }
+
+    void BSTreadTransfInterpolator::post(Reader& nif)
+    {
+        mData.post(nif);
+    }
+
 }
diff --git a/components/nif/controller.hpp b/components/nif/controller.hpp
index 947fae1ab2..d4aae6ed5d 100644
--- a/components/nif/controller.hpp
+++ b/components/nif/controller.hpp
@@ -56,6 +56,7 @@ namespace Nif
         bool mPlayBackwards{ false };
         NiControllerManagerPtr mManager;
         NiStringPalettePtr mStringPalette;
+        BSAnimNotesList mAnimNotesList;
 
         void read(NIFStream* nif) override;
         void post(Reader& nif) override;
@@ -548,5 +549,91 @@ namespace Nif
     using NiBlendPoint3Interpolator = TypedNiBlendInterpolator<osg::Vec3f>;
     using NiBlendTransformInterpolator = TypedNiBlendInterpolator<NiQuatTransform>;
 
+    // Abstract
+    struct NiBSplineInterpolator : public NiInterpolator
+    {
+        float mStartTime;
+        float mStopTime;
+        NiBSplineDataPtr mSplineData;
+        NiBSplineBasisDataPtr mBasisData;
+
+        void read(NIFStream* nif) override;
+        void post(Reader& nif) override;
+    };
+
+    // Abstract
+    struct NiBSplineFloatInterpolator : public NiBSplineInterpolator
+    {
+        float mValue;
+        uint32_t mHandle;
+
+        void read(NIFStream* nif) override;
+    };
+
+    struct NiBSplineCompFloatInterpolator : public NiBSplineFloatInterpolator
+    {
+        float mOffset;
+        float mHalfRange;
+
+        void read(NIFStream* nif) override;
+    };
+
+    // Abstract
+    struct NiBSplinePoint3Interpolator : public NiBSplineInterpolator
+    {
+        osg::Vec3f mValue;
+        uint32_t mHandle;
+
+        void read(NIFStream* nif) override;
+    };
+
+    struct NiBSplineCompPoint3Interpolator : public NiBSplinePoint3Interpolator
+    {
+        float mOffset;
+        float mHalfRange;
+
+        void read(NIFStream* nif) override;
+    };
+
+    struct NiBSplineTransformInterpolator : public NiBSplineInterpolator
+    {
+        NiQuatTransform mValue;
+        uint32_t mTranslationHandle;
+        uint32_t mRotationHandle;
+        uint32_t mScaleHandle;
+
+        void read(NIFStream* nif) override;
+    };
+
+    struct NiBSplineCompTransformInterpolator : public NiBSplineTransformInterpolator
+    {
+        float mTranslationOffset;
+        float mTranslationHalfRange;
+        float mRotationOffset;
+        float mRotationHalfRange;
+        float mScaleOffset;
+        float mScaleHalfRange;
+
+        void read(NIFStream* nif) override;
+    };
+
+    struct BSTreadTransform
+    {
+        std::string mName;
+        NiQuatTransform mTransform1;
+        NiQuatTransform mTransform2;
+
+        void read(NIFStream* nif);
+    };
+
+    struct BSTreadTransfInterpolator : public NiInterpolator
+    {
+        std::vector<BSTreadTransform> mTransforms;
+        NiFloatDataPtr mData;
+
+        void read(NIFStream* nif) override;
+        void post(Reader& nif) override;
+    };
+
 }
 #endif
diff --git a/components/nif/data.cpp b/components/nif/data.cpp
index fa66435aee..29b11bd806 100644
--- a/components/nif/data.cpp
+++ b/components/nif/data.cpp
@@ -537,6 +537,17 @@ namespace Nif
         mKeyList->read(nif);
     }
 
+    void NiBSplineData::read(NIFStream* nif)
+    {
+        nif->readVector(mFloatControlPoints, nif->get<uint32_t>());
+        nif->readVector(mCompactControlPoints, nif->get<uint32_t>());
+    }
+
+    void NiBSplineBasisData::read(NIFStream* nif)
+    {
+        nif->read(mNumControlPoints);
+    }
+
     void NiAdditionalGeometryData::read(NIFStream* nif)
     {
         nif->read(mNumVertices);
@@ -603,4 +614,31 @@ namespace Nif
         nif->read(mSphere);
     }
 
+    void BSAnimNote::read(NIFStream* nif)
+    {
+        mType = static_cast<Type>(nif->get<uint32_t>());
+        nif->read(mTime);
+        if (mType == Type::GrabIK)
+        {
+            nif->read(mArm);
+        }
+        else if (mType == Type::LookIK)
+        {
+            nif->read(mGain);
+            nif->read(mState);
+        }
+    }
+
+    void BSAnimNotes::read(NIFStream* nif)
+    {
+        mList.resize(nif->get<uint16_t>());
+        for (auto& note : mList)
+            note.read(nif);
+    }
+
+    void BSAnimNotes::post(Reader& nif)
+    {
+        postRecordList(nif, mList);
+    }
+
 } // Namespace
diff --git a/components/nif/data.hpp b/components/nif/data.hpp
index c9daeef4d4..1ccd2919b7 100644
--- a/components/nif/data.hpp
+++ b/components/nif/data.hpp
@@ -362,6 +362,21 @@ namespace Nif
         void read(NIFStream* nif) override;
     };
 
+    struct NiBSplineData : public Record
+    {
+        std::vector<float> mFloatControlPoints;
+        std::vector<int16_t> mCompactControlPoints;
+
+        void read(NIFStream* nif) override;
+    };
+
+    struct NiBSplineBasisData : public Record
+    {
+        uint32_t mNumControlPoints;
+
+        void read(NIFStream* nif) override;
+    };
+
     struct NiAdditionalGeometryData : public Record
     {
         struct DataStream
@@ -434,5 +449,31 @@ namespace Nif
         void read(NIFStream* nif) override;
     };
 
+    struct BSAnimNote : public Record
+    {
+        enum class Type : uint32_t
+        {
+            Invalid = 0,
+            GrabIK = 1,
+            LookIK = 2,
+        };
+
+        Type mType;
+        float mTime;
+        uint32_t mArm;
+        float mGain;
+        uint32_t mState;
+
+        void read(NIFStream* nif) override;
+    };
+
+    struct BSAnimNotes : public Record
+    {
+        BSAnimNoteList mList;
+
+        void read(NIFStream* nif) override;
+        void post(Reader& nif) override;
+    };
+
 }
 #endif
diff --git a/components/nif/niffile.cpp b/components/nif/niffile.cpp
index 8a0b0bf930..d360552f9f 100644
--- a/components/nif/niffile.cpp
+++ b/components/nif/niffile.cpp
@@ -164,6 +164,14 @@ namespace Nif
             { "NiLightRadiusController", &construct<NiFloatInterpController, RC_NiLightRadiusController> },
 
             // Interpolators, Gamebryo
+            { "NiBSplineCompFloatInterpolator",
+                &construct<NiBSplineCompFloatInterpolator, RC_NiBSplineCompFloatInterpolator> },
+            { "NiBSplineCompPoint3Interpolator",
+                &construct<NiBSplineCompPoint3Interpolator, RC_NiBSplineCompPoint3Interpolator> },
+            { "NiBSplineCompTransformInterpolator",
+                &construct<NiBSplineCompTransformInterpolator, RC_NiBSplineCompTransformInterpolator> },
+            { "NiBSplineTransformInterpolator",
+                &construct<NiBSplineTransformInterpolator, RC_NiBSplineTransformInterpolator> },
             { "NiBlendBoolInterpolator", &construct<NiBlendBoolInterpolator, RC_NiBlendBoolInterpolator> },
             { "NiBlendFloatInterpolator", &construct<NiBlendFloatInterpolator, RC_NiBlendFloatInterpolator> },
             { "NiBlendPoint3Interpolator", &construct<NiBlendPoint3Interpolator, RC_NiBlendPoint3Interpolator> },
@@ -178,6 +186,10 @@ namespace Nif
             { "NiPoint3Interpolator", &construct<NiPoint3Interpolator, RC_NiPoint3Interpolator> },
             { "NiTransformInterpolator", &construct<NiTransformInterpolator, RC_NiTransformInterpolator> },
 
+            // Interpolators, Bethesda
+            { "BSRotAccumTransfInterpolator", &construct<NiTransformInterpolator, RC_BSRotAccumTransfInterpolator> },
+            { "BSTreadTransfInterpolator", &construct<BSTreadTransfInterpolator, RC_BSTreadTransfInterpolator> },
+
             // DATA
 
             // 4.0.0.2
@@ -195,10 +207,14 @@ namespace Nif
             // Gamebryo
             { "NiAdditionalGeometryData", &construct<NiAdditionalGeometryData, RC_NiAdditionalGeometryData> },
             { "NiBoolData", &construct<NiBoolData, RC_NiBoolData> },
+            { "NiBSplineData", &construct<NiBSplineData, RC_NiBSplineData> },
+            { "NiBSplineBasisData", &construct<NiBSplineBasisData, RC_NiBSplineBasisData> },
             { "NiDefaultAVObjectPalette", &construct<NiDefaultAVObjectPalette, RC_NiDefaultAVObjectPalette> },
             { "NiTransformData", &construct<NiKeyframeData, RC_NiKeyframeData> },
 
             // Bethesda
+            { "BSAnimNote", &construct<BSAnimNote, RC_BSAnimNote> },
+            { "BSAnimNotes", &construct<BSAnimNotes, RC_BSAnimNotes> },
             { "BSPackedAdditionalGeometryData",
                 &construct<NiAdditionalGeometryData, RC_BSPackedAdditionalGeometryData> },
             { "BSShaderTextureSet", &construct<BSShaderTextureSet, RC_BSShaderTextureSet> },
diff --git a/components/nif/record.hpp b/components/nif/record.hpp
index 699522d24c..21e0b0d382 100644
--- a/components/nif/record.hpp
+++ b/components/nif/record.hpp
@@ -73,6 +73,8 @@ namespace Nif
         RC_bhkSimpleShapePhantom,
         RC_bhkSphereShape,
         RC_bhkStiffSpringConstraint,
+        RC_BSAnimNote,
+        RC_BSAnimNotes,
         RC_BSBehaviorGraphExtraData,
         RC_BSBound,
         RC_BSBoneLODExtraData,
@@ -127,6 +129,7 @@ namespace Nif
         RC_BSStripPSysData,
         RC_BSRefractionFirePeriodController,
         RC_BSRefractionStrengthController,
+        RC_BSRotAccumTransfInterpolator,
         RC_BSSegmentedTriShape,
         RC_BSShaderNoLightingProperty,
         RC_BSShaderPPLightingProperty,
@@ -136,6 +139,7 @@ namespace Nif
         RC_BSSkinInstance,
         RC_BSSkyShaderProperty,
         RC_BSSubIndexTriShape,
+        RC_BSTreadTransfInterpolator,
         RC_BSTriShape,
         RC_BSWArray,
         RC_BSWaterShaderProperty,
@@ -162,6 +166,12 @@ namespace Nif
         RC_NiBSAnimationNode,
         RC_NiBSPArrayController,
         RC_NiBSParticleNode,
+        RC_NiBSplineData,
+        RC_NiBSplineBasisData,
+        RC_NiBSplineCompFloatInterpolator,
+        RC_NiBSplineCompPoint3Interpolator,
+        RC_NiBSplineCompTransformInterpolator,
+        RC_NiBSplineTransformInterpolator,
         RC_NiCamera,
         RC_NiClusterAccumulator,
         RC_NiCollisionObject,
diff --git a/components/nif/recordptr.hpp b/components/nif/recordptr.hpp
index 7056abe6a3..d6311241d7 100644
--- a/components/nif/recordptr.hpp
+++ b/components/nif/recordptr.hpp
@@ -137,6 +137,8 @@ namespace Nif
     struct NiPSysModifier;
     struct NiPSysSpawnModifier;
     struct NiBoolData;
+    struct NiBSplineData;
+    struct NiBSplineBasisData;
     struct NiSkinPartition;
     struct BSShaderTextureSet;
     struct NiTriBasedGeom;
@@ -163,6 +165,8 @@ namespace Nif
     struct BSMultiBound;
     struct BSMultiBoundData;
     struct BSSkinBoneData;
+    struct BSAnimNote;
+    struct BSAnimNotes;
 
     using NiAVObjectPtr = RecordPtrT<NiAVObject>;
     using ExtraPtr = RecordPtrT<Extra>;
@@ -189,6 +193,8 @@ namespace Nif
     using NiPSysModifierPtr = RecordPtrT<NiPSysModifier>;
     using NiPSysSpawnModifierPtr = RecordPtrT<NiPSysSpawnModifier>;
     using NiBoolDataPtr = RecordPtrT<NiBoolData>;
+    using NiBSplineDataPtr = RecordPtrT<NiBSplineData>;
+    using NiBSplineBasisDataPtr = RecordPtrT<NiBSplineBasisData>;
     using NiSkinPartitionPtr = RecordPtrT<NiSkinPartition>;
     using BSShaderTextureSetPtr = RecordPtrT<BSShaderTextureSet>;
     using NiTriBasedGeomPtr = RecordPtrT<NiTriBasedGeom>;
@@ -227,6 +233,8 @@ namespace Nif
     using NiControllerSequenceList = RecordListT<NiControllerSequence>;
     using NiPSysModifierList = RecordListT<NiPSysModifier>;
     using NiTriBasedGeomList = RecordListT<NiTriBasedGeom>;
+    using BSAnimNoteList = RecordListT<BSAnimNote>;
+    using BSAnimNotesList = RecordListT<BSAnimNotes>;
 
 } // Namespace
 #endif