diff --git a/engines/grim/emi/animationemi.cpp b/engines/grim/emi/animationemi.cpp
index ae11b5cbc78..c1748beee77 100644
--- a/engines/grim/emi/animationemi.cpp
+++ b/engines/grim/emi/animationemi.cpp
@@ -99,7 +99,7 @@ Bone::~Bone() {
 }
 
 AnimationStateEmi::AnimationStateEmi(const Common::String &anim) :
-		_skel(nullptr), _looping(false), _active(false),
+		_skel(nullptr), _looping(false), _active(false), _paused(false),
 		_fadeMode(Animation::None), _fade(1.0f), _fadeLength(0), _time(0), _startFade(1.0f),
 		_boneJoints(nullptr) {
 	_anim = g_resourceloader->getAnimationEmi(anim);
diff --git a/engines/grim/inputdialog.cpp b/engines/grim/inputdialog.cpp
index 7e96c5bb46e..7fc772f7f42 100644
--- a/engines/grim/inputdialog.cpp
+++ b/engines/grim/inputdialog.cpp
@@ -32,7 +32,8 @@
 namespace Grim {
 
 InputDialog::InputDialog(const Common::String &message, const Common::String &string, bool hasTextField) :
-		GUI::Dialog(30, 20, 260, 124), _hasTextField(hasTextField) {
+		GUI::Dialog(30, 20, 260, 124), _hasTextField(hasTextField),
+		m_text(nullptr) {
 
 	const int screenW = g_system->getOverlayWidth();
 	const int screenH = g_system->getOverlayHeight();
diff --git a/engines/grim/material.cpp b/engines/grim/material.cpp
index 761140a228c..633a05a28dc 100644
--- a/engines/grim/material.cpp
+++ b/engines/grim/material.cpp
@@ -219,7 +219,7 @@ Material::Material(const Common::String &filename, Common::SeekableReadStream *d
 }
 
 Material::Material() :
-		Object(), _currImage(0), _data(nullptr) {
+		Object(), _currImage(0), _data(nullptr), _clampTexture(false) {
 }
 
 void Material::reload(CMap *cmap) {
diff --git a/engines/grim/movie/codecs/smush_decoder.cpp b/engines/grim/movie/codecs/smush_decoder.cpp
index 65080fbed71..16c9b88c582 100644
--- a/engines/grim/movie/codecs/smush_decoder.cpp
+++ b/engines/grim/movie/codecs/smush_decoder.cpp
@@ -476,6 +476,7 @@ SmushDecoder::SmushVideoTrack::SmushVideoTrack(int width, int height, int fps, i
 }
 
 SmushDecoder::SmushVideoTrack::~SmushVideoTrack() {
+	delete _codec48;
 	delete _blocky8;
 	delete _blocky16;
 	_surface.free();
diff --git a/engines/grim/sector.cpp b/engines/grim/sector.cpp
index c1cd506d77f..3b8d07de0a9 100644
--- a/engines/grim/sector.cpp
+++ b/engines/grim/sector.cpp
@@ -38,7 +38,8 @@ Sector::Sector() :
  }
 
 Sector::Sector(const Sector &other) :
-		_vertices(nullptr), _origVertices(nullptr), _sortplanes(nullptr) {
+		_vertices(nullptr), _origVertices(nullptr), _sortplanes(nullptr),
+		_numSortplanes(0) {
 	*this = other;
 }
 
diff --git a/engines/grim/set.cpp b/engines/grim/set.cpp
index cc05f672230..9a57e747aa4 100644
--- a/engines/grim/set.cpp
+++ b/engines/grim/set.cpp
@@ -197,6 +197,8 @@ void Set::loadText(TextSplitter &ts) {
 void Set::loadBinary(Common::SeekableReadStream *data) {
 	// yes, an array of size 0
 	_cmaps = nullptr;//new CMapPtr[0];
+	_numCmaps = 0;
+	_numObjectStates = 0;
 
 
 	_numSetups = data->readUint32LE();
diff --git a/graphics/opengles2/framebuffer.cpp b/graphics/opengles2/framebuffer.cpp
index 0550e32402a..b5156696ea2 100644
--- a/graphics/opengles2/framebuffer.cpp
+++ b/graphics/opengles2/framebuffer.cpp
@@ -148,7 +148,7 @@ FrameBuffer::FrameBuffer(GLuint texture_name, uint width, uint height, uint text
 }
 
 FrameBuffer::~FrameBuffer() {
-	glDeleteRenderbuffers(2, &_renderBuffers[0]);
+	glDeleteRenderbuffers(2, _renderBuffers);
 	glDeleteFramebuffers(1, &_frameBuffer);
 	if (_managedTexture)
 		glDeleteTextures(1, &_colorTexture);
@@ -156,7 +156,7 @@ FrameBuffer::~FrameBuffer() {
 
 void FrameBuffer::init() {
 	glGenFramebuffers(1, &_frameBuffer);
-	glGenRenderbuffers(2, &_renderBuffers[0]);
+	glGenRenderbuffers(2, _renderBuffers);
 
 	glBindFramebuffer(GL_FRAMEBUFFER, _frameBuffer);
 	glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _colorTexture, 0);