diff --git a/src/Koogle.Web/Components/Pages/Days/DayEditDialog.razor b/src/Koogle.Web/Components/Pages/Days/DayEditDialog.razor
index 7496c3c..590ce6a 100644
--- a/src/Koogle.Web/Components/Pages/Days/DayEditDialog.razor
+++ b/src/Koogle.Web/Components/Pages/Days/DayEditDialog.razor
@@ -4,9 +4,11 @@
 @using Koogle.Web.Store.PersonState
 
 @inherits Fluxor.Blazor.Web.Components.FluxorComponent
+@implements IDisposable
 
 @inject IState<PersonState> PersonState
 @inject IDispatcher Dispatcher
+@inject IActionSubscriber ActionSubscriber
 
 <MudDialog>
     <TitleContent>
@@ -65,6 +67,27 @@
                             </MudChip>
                         }
                     </MudChipSet>
+
+                    <MudStack Row="true" AlignItems="AlignItems.Center" Class="mt-2">
+                        <MudTextField @bind-Value="_newGuestName"
+                            Label="Neuer Gast"
+                            Variant="Variant.Outlined"
+                            Margin="Margin.Dense"
+                            Placeholder="Name eingeben..."
+                            Disabled="@_isCreatingGuest"
+                            Style="flex-grow: 1;" />
+                        <MudButton Variant="Variant.Filled"
+                            Color="Color.Secondary"
+                            Size="Size.Small"
+                            Disabled="@(string.IsNullOrWhiteSpace(_newGuestName) || _isCreatingGuest)"
+                            OnClick="CreateGuest">
+                            @if (_isCreatingGuest)
+                            {
+                                <MudProgressCircular Size="Size.Small" Indeterminate="true" Class="mr-2" />
+                            }
+                            Gast anlegen
+                        </MudButton>
+                    </MudStack>
                 }
             }
             
@@ -95,6 +118,8 @@
     private DateTime? _postDate = DateTime.Today;
     private DayStatus _status = DayStatus.New;
     private IReadOnlyCollection<Guid> _selectedPersonIds = [];
+    private string _newGuestName = string.Empty;
+    private bool _isCreatingGuest;
 
     private bool IsEditMode => Day is not null;
 
@@ -102,6 +127,9 @@
     {
         base.OnInitialized();
 
+        ActionSubscriber.SubscribeToAction<CreatePersonSuccessAction>(this, OnGuestCreated);
+        ActionSubscriber.SubscribeToAction<CreatePersonFailureAction>(this, OnGuestCreationFailed);
+
         if (Day is not null)
         {
             _postDate = Day.PostDate;
@@ -123,6 +151,11 @@
         }
     }
 
+    public void Dispose()
+    {
+        ActionSubscriber.UnsubscribeFromAllActions(this);
+    }
+
     protected override void OnAfterRender(bool firstRender)
     {
         base.OnAfterRender(firstRender);
@@ -168,6 +201,37 @@
         }
     }
 
+    private void CreateGuest()
+    {
+        if (string.IsNullOrWhiteSpace(_newGuestName))
+            return;
+
+        _isCreatingGuest = true;
+        var dto = new CreatePersonDto
+        {
+            Name = _newGuestName.Trim(),
+            PersonStatus = PersonStatus.Guest
+        };
+        Dispatcher.Dispatch(new CreatePersonAction(dto));
+    }
+
+    private void OnGuestCreated(CreatePersonSuccessAction action)
+    {
+        _isCreatingGuest = false;
+        _newGuestName = string.Empty;
+
+        // Add new guest to selection
+        _selectedPersonIds = [.. _selectedPersonIds, action.Person.Id];
+        InvokeAsync(StateHasChanged);
+    }
+
+    private void OnGuestCreationFailed(CreatePersonFailureAction action)
+    {
+        _isCreatingGuest = false;
+        _error = $"Gast konnte nicht angelegt werden: {action.Error}";
+        InvokeAsync(StateHasChanged);
+    }
+
     private void Validate()
     {
         _error = "";