diff --git a/skymp5-server/cpp/messages/ActivateMessage.h b/skymp5-server/cpp/messages/ActivateMessage.h
index 2cfa069d0..a20a2b14b 100644
--- a/skymp5-server/cpp/messages/ActivateMessage.h
+++ b/skymp5-server/cpp/messages/ActivateMessage.h
@@ -14,7 +14,8 @@ struct ActivateMessage : public MessageBase<ActivateMessage>
     template <class Archive>
     void Serialize(Archive& archive)
     {
-      archive.Serialize("caster", caster)
+      archive.Serialize("t", kMsgType)
+        .Serialize("caster", caster)
         .Serialize("target", target)
         .Serialize("isSecondActivation", isSecondActivation);
     }
diff --git a/skymp5-server/cpp/messages/ConsoleCommandMessage.h b/skymp5-server/cpp/messages/ConsoleCommandMessage.h
index 8790a42c2..1bb914737 100644
--- a/skymp5-server/cpp/messages/ConsoleCommandMessage.h
+++ b/skymp5-server/cpp/messages/ConsoleCommandMessage.h
@@ -14,7 +14,9 @@ struct ConsoleCommandMessage : public MessageBase<ConsoleCommandMessage>
     template <class Archive>
     void Serialize(Archive& archive)
     {
-      archive.Serialize("commandName", commandName).Serialize("args", args);
+      archive.Serialize("t", kMsgType)
+        .Serialize("commandName", commandName)
+        .Serialize("args", args);
     }
 
     std::string commandName;
diff --git a/skymp5-server/cpp/messages/CraftItemMessage.h b/skymp5-server/cpp/messages/CraftItemMessage.h
index f784f9df0..650f0defa 100644
--- a/skymp5-server/cpp/messages/CraftItemMessage.h
+++ b/skymp5-server/cpp/messages/CraftItemMessage.h
@@ -14,7 +14,8 @@ struct CraftItemMessage : public MessageBase<CraftItemMessage>
     template <class Archive>
     void Serialize(Archive& archive)
     {
-      archive.Serialize("workbench", workbench)
+      archive.Serialize("t", kMsgType)
+        .Serialize("workbench", workbench)
         .Serialize("craftInputObjects", craftInputObjects)
         .Serialize("resultObjectId", resultObjectId);
     }
diff --git a/skymp5-server/cpp/messages/CreateActorMessage.h b/skymp5-server/cpp/messages/CreateActorMessage.h
index 4ef5224fb..8a1c0525e 100644
--- a/skymp5-server/cpp/messages/CreateActorMessage.h
+++ b/skymp5-server/cpp/messages/CreateActorMessage.h
@@ -1,9 +1,103 @@
 #pragma once
 #include "MessageBase.h"
 #include "MsgType.h"
+#include <map>
 #include <type_traits>
 
-struct CreateActorMessage : public MessageBase<CreateActorMessage>
+struct Transform
+{
+  template <class Archive>
+  void Serialize(Archive& archive)
+  {
+    archive.Serialize("worldOrCell", worldOrCell)
+      .Serialize("pos", pos)
+      .Serialize("rot", rot);
+  }
+
+  uint32_t worldOrCell = 0;
+  std::array<float, 3> pos = { 0.f, 0.f, 0.f };
+  std::array<float, 3> rot = { 0.f, 0.f, 0.f };
+};
+
+struct CreateActorMessageAdditionalProps
+{
+  template <class Archive>
+  void Serialize(Archive& archive){
+    archive.Serialize("isOpen", isOpen)
+      .Serialize("setNodeTextureSet", setNodeTextureSet)
+      .Serialize("setNodeScale", setNodeScale)
+      .Serialize("isDisabled", isDisabled)
+      .Serialize("lastAnimation", lastAnimation)
+      .Serialize("displayName", displayName)
+      .Serialize("isHostedByOther", isHostedByOther)
+      .Serialize("isRaceMenuOpen", isRaceMenuOpen)
+      .Serialize("learnedSpells", learnedSpells)
+      .Serialize("healRate", healRate)
+      .Serialize("healRateMult", healRateMult)
+      .Serialize("health", health)
+      .Serialize("magickaRate", magickaRate)
+      .Serialize("magickaRateMult", magickaRateMult)
+      .Serialize("magicka", magicka)
+      .Serialize("staminaRate", staminaRate)
+      .Serialize("staminaRateMult", staminaRateMult)
+      .Serialize("stamina", stamina)
+      .Serialize("healthPercentage", healthPercentage)
+      .Serialize("staminaPercentage", staminaPercentage)
+      .Serialize("magickaPercentage", magickaPercentage)
+  }
+
+  std::optional<bool> isOpen;
+  std::optional<std::map<std::string, std::string>> setNodeTextureSet;
+  std::optional<std::map<std::string, float>> setNodeScale;
+  std::optional<bool> isDisabled;
+  std::optional<std::string> lastAnimation;
+  std::optional<std::string> displayName;
+  std::optional<bool> isHostedByOther;
+  std::optional<bool> isRaceMenuOpen;
+  std::optional<std::vector<uint32_t>> learnedSpells;
+  std::optional<float> healRate;
+  std::optional<float> healRateMult;
+  std::optional<float> health;
+  std::optional<float> magickaRate;
+  std::optional<float> magickaRateMult;
+  std::optional<float> magicka;
+  std::optional<float> staminaRate;
+  std::optional<float> staminaRateMult;
+  std::optional<float> stamina;
+  std::optional<float> healthPercentage;
+  std::optional<float> staminaPercentage;
+  std::optional<float> magickaPercentage;
+  std::optional<std::vector<uint32_t>> templateChain;
+  std::optional<Inventory> inventory;
+
+  std::optional<bool>
+    isDead; // TODO: take a look why doubles CreateActorMessageMainProps
+};
+
+struct CreateActorMessageMainProps
+{
+  template <class Archive>
+  void Serialize(Archive& archive)
+  {
+    archive.Serialize("refrId", refrId)
+      .Serialize("baseId", baseId)
+      .Serialize("appearance", appearance)
+      .Serialize("equipment", equipment)
+      .Serialize("animation", animation)
+      .Serialize("isDead", isDead);
+  }
+
+  std::optional<uint64_t> refrId;
+  std::optional<uint32_t> baseId = 0;
+  std::optional<Appearance> appearance;
+  std::optional<Equipment> equipment;
+  std::optional<Animation> animation;
+  std::optional<bool> isDead;
+};
+
+struct CreateActorMessage
+  : public MessageBase<CreateActorMessage>
+  , public CreateActorMessageMainProps
 {
   static constexpr auto kMsgType =
     std::integral_constant<char, static_cast<char>(MsgType::CreateActor)>{};
@@ -11,8 +105,21 @@ struct CreateActorMessage : public MessageBase<CreateActorMessage>
   template <class Archive>
   void Serialize(Archive& archive)
   {
-    // TODO
+    archive.Serialize("t", kMsgType)
+      .Serialize("idx", idx)
+      .Serialize("baseRecordType", baseRecordType)
+      .Serialize("transform", transform)
+      .Serialize("isMe", isMe)
+      .Serialize("props", props)
+      .Serialize("customPropsJsonDump", customPropsJsonDump);
+
+    CreateActorMessageMainProps::Serialize(archive);
   }
 
-  // TODO
+  uint32_t idx = 0;
+  std::optional<std::string> baseRecordType;
+  Transform transform;
+  bool isMe = false;
+  CreateActorMessageAdditionalProps props;
+  std::string customPropsJsonDump;
 };
diff --git a/skymp5-server/cpp/messages/SpellCastMessage.h b/skymp5-server/cpp/messages/SpellCastMessage.h
index b35acd044..d0c208e69 100644
--- a/skymp5-server/cpp/messages/SpellCastMessage.h
+++ b/skymp5-server/cpp/messages/SpellCastMessage.h
@@ -12,8 +12,7 @@ struct ActorAnimationVariables
   template <class Archive>
   void Serialize(Archive& archive)
   {
-    archive.Serialize("t", kMsgType)
-      .Serialize("booleans", booleans)
+    archive.Serialize("booleans", booleans)
       .Serialize("floats", floats)
       .Serialize("integers", integers);
   }