diff --git a/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonImageProvider.cs b/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonImageProvider.cs
index bf42ceadef..e4c908a62c 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonImageProvider.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonImageProvider.cs
@@ -1,6 +1,5 @@
 #pragma warning disable CS1591
 
-using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
@@ -55,14 +54,14 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.People
                 return Enumerable.Empty<RemoteImageInfo>();
             }
 
-            var personResult = await _tmdbClientManager.GetPersonAsync(int.Parse(personTmdbId, CultureInfo.InvariantCulture), cancellationToken).ConfigureAwait(false);
+            var language = item.GetPreferredMetadataLanguage();
+            var personResult = await _tmdbClientManager.GetPersonAsync(int.Parse(personTmdbId, CultureInfo.InvariantCulture), language, cancellationToken).ConfigureAwait(false);
             if (personResult?.Images?.Profiles == null)
             {
                 return Enumerable.Empty<RemoteImageInfo>();
             }
 
             var remoteImages = new RemoteImageInfo[personResult.Images.Profiles.Count];
-            var language = item.GetPreferredMetadataLanguage();
 
             for (var i = 0; i < personResult.Images.Profiles.Count; i++)
             {
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonProvider.cs b/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonProvider.cs
index 1757c82678..6db550b1d0 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonProvider.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/People/TmdbPersonProvider.cs
@@ -3,7 +3,6 @@
 using System;
 using System.Collections.Generic;
 using System.Globalization;
-using System.Linq;
 using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
@@ -32,7 +31,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.People
         {
             if (searchInfo.TryGetProviderId(MetadataProvider.Tmdb, out var personTmdbId))
             {
-                var personResult = await _tmdbClientManager.GetPersonAsync(int.Parse(personTmdbId, CultureInfo.InvariantCulture), cancellationToken).ConfigureAwait(false);
+                var personResult = await _tmdbClientManager.GetPersonAsync(int.Parse(personTmdbId, CultureInfo.InvariantCulture), searchInfo.MetadataLanguage, cancellationToken).ConfigureAwait(false);
 
                 if (personResult != null)
                 {
@@ -96,7 +95,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb.People
 
             if (personTmdbId > 0)
             {
-                var person = await _tmdbClientManager.GetPersonAsync(personTmdbId, cancellationToken).ConfigureAwait(false);
+                var person = await _tmdbClientManager.GetPersonAsync(personTmdbId, id.MetadataLanguage, cancellationToken).ConfigureAwait(false);
 
                 result.HasMetadata = true;
 
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs b/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
index 05e5d3ced7..79ec6139d1 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
@@ -276,11 +276,12 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         /// Gets a person eg. cast or crew member from the TMDb API based on its TMDb id.
         /// </summary>
         /// <param name="personTmdbId">The person's TMDb id.</param>
+        /// <param name="language">The episode's language.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The TMDb person information or null if not found.</returns>
-        public async Task<Person> GetPersonAsync(int personTmdbId, CancellationToken cancellationToken)
+        public async Task<Person> GetPersonAsync(int personTmdbId, string language, CancellationToken cancellationToken)
         {
-            var key = $"person-{personTmdbId.ToString(CultureInfo.InvariantCulture)}";
+            var key = $"person-{personTmdbId.ToString(CultureInfo.InvariantCulture)}-{language}";
             if (_memoryCache.TryGetValue(key, out Person person))
             {
                 return person;
@@ -290,6 +291,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
 
             person = await _tmDbClient.GetPersonAsync(
                 personTmdbId,
+                TmdbUtils.NormalizeLanguage(language),
                 PersonMethods.TvCredits | PersonMethods.MovieCredits | PersonMethods.Images | PersonMethods.ExternalIds,
                 cancellationToken).ConfigureAwait(false);
 
diff --git a/MediaBrowser.Providers/Plugins/Tmdb/TmdbUtils.cs b/MediaBrowser.Providers/Plugins/Tmdb/TmdbUtils.cs
index b4e165f82b..b713736a0f 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/TmdbUtils.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/TmdbUtils.cs
@@ -148,6 +148,12 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
 
             if (parts.Length == 2)
             {
+                // TMDB doesn't support Switzerland (de-CH, it-CH or fr-CH) so use the language (de, it or fr) without country code
+                if (string.Equals(parts[1], "CH", StringComparison.OrdinalIgnoreCase))
+                {
+                    return parts[0];
+                }
+
                 language = parts[0] + "-" + parts[1].ToUpperInvariant();
             }
 
diff --git a/tests/Jellyfin.Providers.Tests/Jellyfin.Providers.Tests.csproj b/tests/Jellyfin.Providers.Tests/Jellyfin.Providers.Tests.csproj
index 670289f376..b37515e78e 100644
--- a/tests/Jellyfin.Providers.Tests/Jellyfin.Providers.Tests.csproj
+++ b/tests/Jellyfin.Providers.Tests/Jellyfin.Providers.Tests.csproj
@@ -10,14 +10,14 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="Moq" Version="4.16.1" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="coverlet.collector" Version="1.3.0">
+    <PackageReference Include="coverlet.collector" Version="3.0.3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
@@ -31,7 +31,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="../../MediaBrowser.Providers\MediaBrowser.Providers.csproj" />
+    <ProjectReference Include="../../MediaBrowser.Providers/MediaBrowser.Providers.csproj" />
   </ItemGroup>
 
 </Project>
diff --git a/tests/Jellyfin.Providers.Tests/Tmdb/TmdbUtilsTests.cs b/tests/Jellyfin.Providers.Tests/Tmdb/TmdbUtilsTests.cs
new file mode 100644
index 0000000000..f6a7c676f4
--- /dev/null
+++ b/tests/Jellyfin.Providers.Tests/Tmdb/TmdbUtilsTests.cs
@@ -0,0 +1,27 @@
+using MediaBrowser.Providers.Plugins.Tmdb;
+using Xunit;
+
+namespace Jellyfin.Providers.Tests.Tmdb
+{
+    public static class TmdbUtilsTests
+    {
+        [Theory]
+        [InlineData("de", "de")]
+        [InlineData("En", "En")]
+        [InlineData("de-de", "de-DE")]
+        [InlineData("en-US", "en-US")]
+        [InlineData("de-CH", "de")]
+        public static void NormalizeLanguage_Valid_Success(string input, string expected)
+        {
+            Assert.Equal(expected, TmdbUtils.NormalizeLanguage(input));
+        }
+
+        [Theory]
+        [InlineData(null, null)]
+        [InlineData("", "")]
+        public static void NormalizeLanguage_Invalid_Equal(string? input, string? expected)
+        {
+            Assert.Equal(expected, TmdbUtils.NormalizeLanguage(input!));
+        }
+    }
+}