diff --git a/data/uking_functions.csv b/data/uking_functions.csv
index 45327903..f0319b89 100644
--- a/data/uking_functions.csv
+++ b/data/uking_functions.csv
@@ -80188,8 +80188,8 @@
 0x0000007100edd26c,sub_7100EDD26C,156,
 0x0000007100edd308,sub_7100EDD308,136,
 0x0000007100edd390,_ZNK4gsys16ModelSceneBuffer27isOutlineSilhouetteEnabled_Ev,36,
-0x0000007100edd3b4,_ZN3act12hasTagByNameEP5ActorRKN4sead10SafeStringE,76,
-0x0000007100edd400,_ZN3act12hasTagByNameERKN4sead10SafeStringES3_,124,
+0x0000007100edd3b4,_ZN3act12hasTagByNameEP5ActorRKN4sead10SafeStringE,76,_ZN4ksys3act6hasTagEPNS0_5ActorERKN4sead14SafeStringBaseIcEE
+0x0000007100edd400,_ZN3act12hasTagByNameERKN4sead10SafeStringES3_,124,_ZN4ksys3act6hasTagERKN4sead14SafeStringBaseIcEES5_
 0x0000007100edd47c,_ZN3act6hasTagEP5ActorNS_3TagE,20,
 0x0000007100edd490,_ZN3act6hasTagER12BaseProcLinkNS_3TagE,84,
 0x0000007100edd4e4,_ZN3act6hasTagERKN4sead10SafeStringENS_3TagE,104,
diff --git a/src/KingSystem/ActorSystem/CMakeLists.txt b/src/KingSystem/ActorSystem/CMakeLists.txt
index 05aff8cd..dfd43084 100644
--- a/src/KingSystem/ActorSystem/CMakeLists.txt
+++ b/src/KingSystem/ActorSystem/CMakeLists.txt
@@ -16,6 +16,8 @@ target_sources(uking PRIVATE
   actActorParamMgr.h
   actActorTemplate.cpp
   actActorTemplate.h
+  actActorUtil.cpp
+  actActorUtil.h
   actAiAction.cpp
   actAiAction.h
   actAiClass.cpp
diff --git a/src/KingSystem/ActorSystem/actActorUtil.cpp b/src/KingSystem/ActorSystem/actActorUtil.cpp
new file mode 100644
index 00000000..69f6f51f
--- /dev/null
+++ b/src/KingSystem/ActorSystem/actActorUtil.cpp
@@ -0,0 +1,20 @@
+#include "KingSystem/ActorSystem/actActorUtil.h"
+#include "KingSystem/ActorSystem/actActor.h"
+#include "KingSystem/ActorSystem/actActorParam.h"
+#include "KingSystem/ActorSystem/actInfoData.h"
+#include "KingSystem/Resource/resResourceActorLink.h"
+
+namespace ksys::act {
+
+bool hasTag(Actor* actor, const sead::SafeString& tag) {
+    if (!actor)
+        return false;
+    return actor->getParam()->getRes().mActorLink->hasTag(tag.cstr());
+}
+
+bool hasTag(const sead::SafeString& actor, const sead::SafeString& tag) {
+    auto* data = InfoData::instance();
+    return data && data->hasTag(actor.cstr(), tag.cstr());
+}
+
+}  // namespace ksys::act
diff --git a/src/KingSystem/ActorSystem/actActorUtil.h b/src/KingSystem/ActorSystem/actActorUtil.h
new file mode 100644
index 00000000..6a312e45
--- /dev/null
+++ b/src/KingSystem/ActorSystem/actActorUtil.h
@@ -0,0 +1,154 @@
+#pragma once
+
+#include <prim/seadSafeString.h>
+
+namespace al {
+class ByamlIter;
+}
+
+namespace ksys::map {
+class Object;
+}
+
+namespace ksys::act {
+
+class Actor;
+class ActorConstDataAccess;
+class BaseProcLink;
+
+enum class ArrowType {
+    /// Wooden arrows.
+    Normal = 0,
+    /// Bomb arrows.
+    Bomb = 1,
+    /// Ancient arrows.
+    Ancient = 2,
+    /// Fire arrows.
+    Fire = 3,
+    /// Ice arrows.
+    Ice = 4,
+    /// Shock arrows.
+    Electric = 5,
+
+    Invalid = -1,
+};
+
+/// Compendium type (図鑑 type).
+enum class ZukanType {
+    Animal = 0,
+    Enemy = 1,
+    /// Materials (素材).
+    Sozai = 2,
+    Weapon = 3,
+    Other = 4,
+    Invalid = 5,
+};
+
+bool hasTag(Actor* actor, const sead::SafeString& tag);
+bool hasTag(const sead::SafeString& actor, const sead::SafeString& tag);
+
+bool hasTag(Actor* actor, u32 tag);
+bool hasTag(BaseProcLink* link, u32 tag);
+bool hasTag(const sead::SafeString& actor, u32 tag);
+
+/// Checks whether the actor has at least one of the specified tags.
+/// @param tags A comma separated list of tags.
+bool hasOneTagAtLeast(Actor* actor, const sead::SafeString& tags);
+bool hasOneTagAtLeast(BaseProcLink* link, const sead::SafeString& tags);
+bool hasOneTagAtLeast(ActorConstDataAccess* accessor, const sead::SafeString& tags);
+
+bool shouldSkipSpawnForWeatherReasons(map::Object* obj);
+bool isAnimalMasterAppearance(map::Object* obj);
+bool shouldSkipSpawnGodForestActor(map::Object* obj);
+bool shouldSkipSpawnFairy(map::Object* obj);
+bool shouldSkipSpawnFairy(const sead::SafeString& actor);
+
+/// Must be called before using any of the "should skip" functions above + isAnimalMasterAppearance.
+void initSpawnConditionGameDataFlags();
+
+bool hasAnyRevivalTag(const sead::SafeString& actor);
+
+bool hasStopTimerMiddleTag(Actor* actor);
+bool hasStopTimerShortTag(Actor* actor);
+bool canBeStasised(Actor* actor);
+
+void highlightStasisableActors(bool on);
+
+const char* arrowTypeToString(ArrowType idx);
+ArrowType arrowTypeFromString(const sead::SafeString& name);
+
+ZukanType getZukanType(al::ByamlIter* iter);
+ZukanType getZukanType(Actor* actor);
+
+bool isPlayerProfile(const ActorConstDataAccess& accessor);
+bool isPlayerProfile(Actor* actor);
+bool isPlayerProfile(BaseProcLink* link);
+
+bool isCameraProfile(Actor* actor);
+
+bool isNPCProfile(const ActorConstDataAccess& accessor);
+bool isNPCProfile(Actor* actor);
+bool isNPCProfile(BaseProcLink* link);
+bool isNPCOffPodFromWeapon(Actor* actor);
+
+bool isDemoNPCProfile(Actor* actor);
+
+bool isEnemyProfile(const ActorConstDataAccess& accessor);
+bool isEnemyProfile(Actor* actor);
+bool isEnemyProfile(BaseProcLink* link);
+
+bool isGuardianProfile(BaseProcLink* link);
+
+bool isLargeEnemy(const ActorConstDataAccess& accessor);
+bool isLargeEnemy(Actor* actor);
+
+bool isGanonBeast(const ActorConstDataAccess& accessor);
+bool isGanonBeast(BaseProcLink* link);
+
+bool isHumanOrOtherAnimal(Actor* actor);
+bool isHumanOrOtherAnimal(const ActorConstDataAccess& accessor);
+bool isHumanOrOtherAnimal(BaseProcLink* link);
+
+bool isWeaponName(const ActorConstDataAccess& accessor);
+bool isWeaponName(const sead::SafeString& actor);
+bool isWeaponName(Actor* actor);
+bool isWeaponName(BaseProcLink* link);
+
+bool isWeaponOrArmor(const ActorConstDataAccess& accessor);
+bool isWeaponOrArmor(Actor* actor);
+
+bool isBulletProfile(const ActorConstDataAccess& accessor);
+bool isBulletProfile(Actor* actor);
+bool isBulletProfile(BaseProcLink* link);
+
+bool isHorseProfile(const ActorConstDataAccess& accessor);
+bool isHorseProfile(Actor* actor);
+bool isHorseProfile(BaseProcLink* link);
+
+bool isAttClientEnabled(Actor* actor, const sead::SafeString& client);
+bool isGrabAttClientEnabled(void* x, BaseProcLink* link);
+
+bool isStalfosParts(BaseProcLink* link);
+
+bool isDoor(Actor* actor);
+bool isDoor(BaseProcLink* link);
+
+bool isPreyOrSwarm(const ActorConstDataAccess& accessor);
+bool isPreyOrSwarm(Actor* actor);
+bool isPreyOrSwarm(BaseProcLink* link);
+
+bool isWolfOrBear(const ActorConstDataAccess& accessor);
+bool isWolfOrBear(Actor* actor);
+bool isWolfOrBear(BaseProcLink* link);
+
+bool isRope(Actor* actor);
+bool isRope(BaseProcLink* link);
+
+bool isTreeOrScaffoldOrSignboard(Actor* actor);
+
+bool isAlive(BaseProcLink* link);
+
+bool isAirOctaPlatform(const sead::SafeString& name);
+bool isAirOctaPlatformDlc(const sead::SafeString& name);
+
+}  // namespace ksys::act