diff --git a/include/Actor/Actor.hpp b/include/Actor/Actor.hpp
index 32423853..a21a8d6b 100644
--- a/include/Actor/Actor.hpp
+++ b/include/Actor/Actor.hpp
@@ -5,15 +5,12 @@
 #include "global.h"
 #include "types.h"
 
-struct UnkStruct_vfunc_00 {
-    unk32 mUnk_00;
-    unk32 mUnk_04;
-    unk32 mUnk_08;
-};
-
 class Actor_5c {
 public:
-    /* 00 */ unk32 mUnk_00;
+    /* 00 */ Vec3p mUnk_00;
+    /* 0c */ s16 mUnk_0c;
+    /* 0e */ unk16 mUnk_0e; // padding?
+    /* 10 */
 
     void func_ov000_020975f8();
 };
@@ -43,19 +40,15 @@ public:
 class Actor : public SysObject {
 public:
     /* 00 (vtable) */
-    /* 04 */ unk32 mUnk_04;
-    /* 08 */ unk32 mUnk_08;
-    /* 0c */ unk32 mUnk_0c;
-    /* 10 */ unk32 mUnk_10;
-    /* 14 */ unk32 mUnk_14;
-    /* 18 */ unk32 mUnk_18;
-    /* 1c */ Vec3p mUnk_1c;
-    /* 28 */ u16 mUnk_28;
+    /* 04 */ Vec3p mPos;
+    /* 10 */ Vec3p mPrevPos;
+    /* 1c */ Vec3p mVel;
+    /* 28 */ u16 mAngle;
     /* 28 */ unk16 mUnk_2a;
-    /* 2c */ unk32 mUnk_2c;
+    /* 2c */ unk32 mUnk_2c; // gravity?
     /* 30 */ unk32 *mUnk_30;
     /* 34 */ unk32 *mUnk_34;
-    /* 38 */ unk32 mUnk_38;
+    /* 38 */ unk32 *mUnk_38;
     /* 3c */ unk32 mUnk_3c;
     /* 40 */ unk32 mUnk_40;
     /* 44 */ u16 mUnk_44;
@@ -70,10 +63,6 @@ public:
     /* 54 */ unk32 mUnk_54;
     /* 58 */ unk32 mUnk_58;
     /* 5c */ Actor_5c mUnk_5c;
-    /* 60 */ unk32 mUnk_60;
-    /* 64 */ unk32 mUnk_64;
-    /* 68 */ s16 mUnk_68;
-    /* 68 */ unk16 mUnk_6a;
     /* 6c */ unk32 mUnk_6c;
     /* 70 */ unk32 mUnk_70;
     /* 74 */ unk32 mUnk_74;
@@ -86,7 +75,7 @@ public:
     /* 8c */ unk32 mUnk_8c;
     /* 90 */ UnkStruct_ov000_020b539c_30 *mUnk_90;
 
-    /* 00 */ virtual unk32 vfunc_00(UnkStruct_vfunc_00 *param1);
+    /* 00 */ virtual void vfunc_00(Vec3p *param1);
     /* 04 */ virtual bool vfunc_04();
     /* 08 */ virtual unk16 vfunc_08();
     /* 0c */ virtual unk8 vfunc_0c();
@@ -101,7 +90,7 @@ public:
     /* 30 */ virtual void vfunc_30();
     /* 34 */ virtual unk32 vfunc_34();
     /* 38 */ virtual unk32 vfunc_38(unk32 param1);
-    /* 3c */ virtual bool vfunc_3c(Vec3p* param1);
+    /* 3c */ virtual bool vfunc_3c(unk32 param2, Vec3p* param3);
     /* 40 */ virtual void vfunc_40();
     /* 44 */ virtual void vfunc_44();
     /* 48 */ virtual void vfunc_48();
diff --git a/src/00_Second/Actor/Actor.cpp b/src/00_Second/Actor/Actor.cpp
index 512c82ab..b8ca65d3 100644
--- a/src/00_Second/Actor/Actor.cpp
+++ b/src/00_Second/Actor/Actor.cpp
@@ -3,13 +3,9 @@
 #include "Unknown/UnkStruct_027e0ce0.hpp"
 
 ARM Actor::Actor() {
-    unk32 temp_r2;
-    unk32 temp_ip;
-    unk32 temp_r3;
-
-    this->mUnk_1c.x = 0;
-    this->mUnk_1c.y = 0;
-    this->mUnk_1c.z = 0;
+    this->mVel.x = 0;
+    this->mVel.y = 0;
+    this->mVel.z = 0;
     this->mUnk_2c = 0xCD;
     this->mUnk_38 = 0;
     this->mUnk_3c = 0;
@@ -25,18 +21,10 @@ ARM Actor::Actor() {
     this->mUnk_8c = 0;
     this->mUnk_90 = 0;
     data_ov000_020b539c.func_02028cdc(&this->mUnk_5c, 0x30);
-    temp_r2       = this->mUnk_5c.mUnk_00;
-    temp_ip       = this->mUnk_60;
-    temp_r3       = this->mUnk_64;
-    this->mUnk_04 = temp_r2;
-    this->mUnk_10 = temp_r2;
-    this->mUnk_28 = this->mUnk_68;
+    this->mPrevPos = this->mPos = this->mUnk_5c.mUnk_00;
+    this->mAngle = this->mUnk_5c.mUnk_0c;
     this->mUnk_58 = 0x400B;
     this->mUnk_44 = 0xFF;
-    this->mUnk_08 = temp_ip;
-    this->mUnk_0c = temp_r3;
-    this->mUnk_14 = temp_ip;
-    this->mUnk_18 = temp_r3;
     this->mUnk_46 = 0;
     this->func_ov000_0209862c(0);
     this->func_ov000_0209848c(data_ov000_020b539c.mUnk_30);
@@ -92,16 +80,16 @@ ARM void Actor::func_ov000_020984f0() {
 }
 
 // non-matching
-ARM unk32 Actor::vfunc_00(UnkStruct_vfunc_00 *param1) {
-    unk32 iVar1;
-    unk32 uVar2;
+ARM void Actor::vfunc_00(Vec3p *param1) {
+    *param1 = mPos;
+    param1->y += mUnk_4e;
+    // short sVar1;
+    // int iVar2;
+    // int iVar3;
 
-    uVar2 = this->mUnk_0c;
-    iVar1 = this->mUnk_08 + this->mUnk_4e;
-    param1->mUnk_00 = this->mUnk_04;
-    param1->mUnk_04 = iVar1;
-    param1->mUnk_08 = uVar2;
-    return iVar1;
+    // param1->x = this->mPos.x;
+    // param1->y = this->mPos.y + this->mUnk_4e;
+    // param1->z = this->mPos.z;
 }
 
 ARM void Actor::func_ov000_0209853c(void) {
@@ -152,16 +140,14 @@ ARM unk32 Actor::vfunc_38(unk32 param1) {
 }
 
 // non-matching
-ARM bool Actor::vfunc_3c(Vec3p *param1) {
-    if (this->mUnk_58 & 0x100) {
-        this->mUnk_1c.x = param1->x;
-        this->mUnk_1c.y = param1->y;
-        this->mUnk_1c.z = param1->z;
-        this->mUnk_58 &= ~0x100;
-        return true;
+ARM bool Actor::vfunc_3c(unk32 param2, Vec3p* param3) {
+    if (!(this->mUnk_58 & 0x100)) {
+        return false;
     }
 
-    return false;
+    this->mVel = *param3;
+    this->mUnk_58 &= ~0x100;
+    return true;
 }
 
 // non-matching