diff --git a/src/java/com/threerings/cast/CharacterManager.java b/src/java/com/threerings/cast/CharacterManager.java
index 63b4caeb..9f2986f1 100644
--- a/src/java/com/threerings/cast/CharacterManager.java
+++ b/src/java/com/threerings/cast/CharacterManager.java
@@ -50,6 +50,15 @@ import static com.threerings.cast.Log.log;
 public class CharacterManager
     implements DirectionCodes
 {
+    /**
+     * Sets the size of the cache used for composited animation frames. This must be called before
+     * the CharacterManager is created.
+     */
+    public static void setCacheSize (int cacheKilobytes)
+    {
+        _cacheSize.setValue(cacheKilobytes);
+    }
+
     /**
      * Constructs the character manager.
      */
diff --git a/src/java/com/threerings/media/image/ClientImageManager.java b/src/java/com/threerings/media/image/ClientImageManager.java
index 9a0f0860..37591d25 100644
--- a/src/java/com/threerings/media/image/ClientImageManager.java
+++ b/src/java/com/threerings/media/image/ClientImageManager.java
@@ -36,6 +36,14 @@ import com.threerings.resource.ResourceManager;
  */
 public class ClientImageManager extends ImageManager
 {
+    /**
+     * Sets the size of the image cache. This must be called before the ImageManager is created.
+     */
+    public static void setCacheSize (int cacheKilobytes)
+    {
+        _cacheSize.setValue(cacheKilobytes);
+    }
+
     public ClientImageManager (ResourceManager rmgr, OptimalImageCreator icreator)
     {
         super(rmgr, icreator);