diff --git a/engines/director/director.cpp b/engines/director/director.cpp
index 10db492e59b7..9a22e675cb7a 100644
--- a/engines/director/director.cpp
+++ b/engines/director/director.cpp
@@ -395,14 +395,14 @@ void DirectorEngine::loadSharedCastsFrom(Common::String filename) {
 	Common::SeekableSubReadStreamEndian *castStream = shardcst->getResource(MKTAG('V','W','C','R'), 1024);
 
 	castScore->loadCastData(*castStream);
-	_sharedCasts = castScore->_casts;
+	*_sharedCasts = castScore->_casts;
 
 	Common::Array<uint16> dib = shardcst->getResourceIDList(MKTAG('D','I','B',' '));
 
 	if (dib.size() != 0) {
 		Common::Array<uint16>::iterator iterator;
 		for (iterator = dib.begin(); iterator != dib.end(); ++iterator) {
-			_sharedDIB[*iterator] = shardcst->getResource(MKTAG('D','I','B',' '), *iterator);
+			_sharedDIB->setVal(*iterator, shardcst->getResource(MKTAG('D','I','B',' '), *iterator));
 		}
 	}
 
@@ -411,7 +411,7 @@ void DirectorEngine::loadSharedCastsFrom(Common::String filename) {
 	if (stxt.size() != 0) {
 		Common::Array<uint16>::iterator iterator;
 		for (iterator = stxt.begin(); iterator != stxt.end(); ++iterator) {
-			_sharedSTXT[*iterator] = shardcst->getResource(MKTAG('S','T','X','T'), *iterator);
+			_sharedSTXT->setVal(*iterator, shardcst->getResource(MKTAG('S','T','X','T'), *iterator));
 		}
 	}
 
@@ -420,7 +420,7 @@ void DirectorEngine::loadSharedCastsFrom(Common::String filename) {
 	if (stxt.size() != 0) {
 		Common::Array<uint16>::iterator iterator;
 		for (iterator = sound.begin(); iterator != sound.end(); ++iterator) {
-			_sharedSTXT[*iterator] = shardcst->getResource(MKTAG('S','N','D',' '), *iterator);
+			_sharedSound->setVal(*iterator, shardcst->getResource(MKTAG('S','N','D',' '), *iterator));
 		}
 	}
 }
diff --git a/engines/director/director.h b/engines/director/director.h
index 82c43fd90c21..a3e0ad0dbb03 100644
--- a/engines/director/director.h
+++ b/engines/director/director.h
@@ -24,6 +24,7 @@
 #define DIRECTOR_DIRECTOR_H
 
 #include "common/scummsys.h"
+#include "common/substream.h"
 
 #include "common/str.h"
 #include "common/hashmap.h"
@@ -67,9 +68,9 @@ class DirectorEngine : public ::Engine {
 	const byte *getPalette() const { return _currentPalette; }
 	uint16 getPaletteColorCount() const { return _currentPaletteLength; }
 	void loadSharedCastsFrom(Common::String filename);
-	Common::HashMap<int, Common::SeekableReadStream *> getSharedDIB() const { return _sharedDIB; }
-	Common::HashMap<int, Common::SeekableReadStream *> getSharedSTXT() const { return _sharedSTXT; }
-	Common::HashMap<int, Cast *> getSharedCasts() const { return _sharedCasts; }
+	Common::HashMap<int, Common::SeekableSubReadStreamEndian *> *getSharedDIB() const { return _sharedDIB; }
+	Common::HashMap<int, Common::SeekableSubReadStreamEndian *> *getSharedSTXT() const { return _sharedSTXT; }
+	Common::HashMap<int, Cast *> *getSharedCasts() const { return _sharedCasts; }
 
 	Common::HashMap<Common::String, Score *> *_movies;
 	Score *_currentScore;
@@ -93,10 +94,10 @@ class DirectorEngine : public ::Engine {
 	Common::String readPascalString(Common::SeekableReadStream &stream);
 
 	Common::String _sharedMMM;
-	Common::HashMap<int, Cast *> _sharedCasts;
-	Common::HashMap<int, Common::SeekableReadStream *> _sharedDIB;
-	Common::HashMap<int, Common::SeekableReadStream *> _sharedSTXT;
-	Common::HashMap<int, Common::SeekableReadStream *> _sharedSound;
+	Common::HashMap<int, Cast *> *_sharedCasts;
+	Common::HashMap<int, Common::SeekableSubReadStreamEndian *> *_sharedDIB;
+	Common::HashMap<int, Common::SeekableSubReadStreamEndian *> *_sharedSTXT;
+	Common::HashMap<int, Common::SeekableSubReadStreamEndian *> *_sharedSound;
 
 	Archive *_mainArchive;
 	Common::MacResManager *_macBinary;
diff --git a/engines/director/score.cpp b/engines/director/score.cpp
index ff324c59c4b7..59b37ececf48 100644
--- a/engines/director/score.cpp
+++ b/engines/director/score.cpp
@@ -1129,11 +1129,11 @@ void Frame::renderSprites(Graphics::ManagedSurface &surface, bool renderTrail) {
 
 			Cast *cast;
 			if (!_vm->_currentScore->_casts.contains(_sprites[i]->_castId)) {
-				if (!_vm->getSharedCasts().contains(_sprites[i]->_castId)) {
+				if (!_vm->getSharedCasts()->contains(_sprites[i]->_castId)) {
 					warning("Cast id %d not found", _sprites[i]->_castId);
 					continue;
 				} else {
-					cast = _vm->getSharedCasts().getVal(_sprites[i]->_castId);
+					cast = _vm->getSharedCasts()->getVal(_sprites[i]->_castId);
 				}
 			} else {
 				cast = _vm->_currentScore->_casts[_sprites[i]->_castId];
@@ -1148,11 +1148,11 @@ void Frame::renderSprites(Graphics::ManagedSurface &surface, bool renderTrail) {
 			uint32 imgId = 1024 + _sprites[i]->_castId;
 
 			if (!_vm->_currentScore->getArchive()->hasResource(MKTAG('D', 'I', 'B', ' '), imgId)) {
-				if (!_vm->getSharedDIB().contains(imgId)) {
+				if (!_vm->getSharedDIB()->contains(imgId)) {
 					warning("DIB id %d not found", imgId);
 					continue;
 				} else {
-					img.loadStream(*_vm->getSharedDIB().getVal(imgId));
+					img.loadStream(*_vm->getSharedDIB()->getVal(imgId));
 				}
 			} else {
 				img.loadStream(*_vm->_currentScore->getArchive()->getResource(MKTAG('D', 'I', 'B', ' '), imgId));