diff --git a/Engine/source/math/mAngAxis.h b/Engine/source/math/mAngAxis.h
index a61b8e4f6..fd02ad8ec 100644
--- a/Engine/source/math/mAngAxis.h
+++ b/Engine/source/math/mAngAxis.h
@@ -67,6 +67,8 @@ class AngAxisF
 
 inline AngAxisF::AngAxisF()
 {
+   axis = Point3F(0.0f,0.0f,1.0f);
+   angle = 0.0f;
 }
 
 inline AngAxisF::AngAxisF( const Point3F & _axis, F32 _angle )
diff --git a/Engine/source/math/mMatrix.h b/Engine/source/math/mMatrix.h
index 71a95946b..5c2f3e8ae 100644
--- a/Engine/source/math/mMatrix.h
+++ b/Engine/source/math/mMatrix.h
@@ -22,7 +22,7 @@
 
 #ifndef _MMATRIX_H_
 #define _MMATRIX_H_
-
+#include <algorithm>
 #ifndef _MPLANE_H_
 #include "math/mPlane.h"
 #endif
@@ -232,6 +232,8 @@ inline MatrixF::MatrixF(bool _identity)
 {
    if (_identity)
       identity();
+   else
+      std::fill_n(m, 16, 0);
 }
 
 inline MatrixF::MatrixF( const EulerF &e )
diff --git a/Engine/source/math/mPlane.h b/Engine/source/math/mPlane.h
index a67d5c60b..6191251ff 100644
--- a/Engine/source/math/mPlane.h
+++ b/Engine/source/math/mPlane.h
@@ -66,7 +66,7 @@ class PlaneF : public Point3F
       /// @name Initialization
       /// @{
 
-      PlaneF() {}
+      PlaneF() :d(0.0f) {}
       PlaneF( const Point3F& p, const Point3F& n );
       /// NOTE: d is the NEGATIVE distance along the xyz normal.
       PlaneF( F32 _x, F32 _y, F32 _z, F32 _d);
@@ -571,6 +571,7 @@ public:
 
 inline PlaneD::PlaneD()
 {
+   d = 0.0;
 }
 
 inline PlaneD::
diff --git a/Engine/source/math/mPlaneSet.h b/Engine/source/math/mPlaneSet.h
index 511c7bd92..8c83b01d6 100644
--- a/Engine/source/math/mPlaneSet.h
+++ b/Engine/source/math/mPlaneSet.h
@@ -76,7 +76,7 @@ class PlaneSet
 
       /// Create an uninitialized set.
       /// @warn None of the members will be initialized.
-      PlaneSet() {}
+      PlaneSet() :mNumPlanes(0), mPlanes(NULL) {}
       
       /// Use the given set of planes to initialize the set.
       ///
diff --git a/Engine/source/math/mPoint2.h b/Engine/source/math/mPoint2.h
index c141400b9..d48fea3c9 100644
--- a/Engine/source/math/mPoint2.h
+++ b/Engine/source/math/mPoint2.h
@@ -266,8 +266,8 @@ class Point2D
 //-------------------------------------- Point2I
 //
 inline Point2I::Point2I()
+   :x(0),y(0)
 {
-   //
 }
 
 
@@ -448,8 +448,8 @@ inline Point2I& Point2I::operator/=(const Point2I &_vec)
 //-------------------------------------- Point2F
 //
 inline Point2F::Point2F()
+   :x(0.0f), y(0.0f)
 {
-   //
 }
 
 
@@ -692,8 +692,8 @@ inline void Point2F::normalizeSafe()
 //-------------------------------------- Point2D
 //
 inline Point2D::Point2D()
+   :x(0.0), y(0.0)
 {
-   //
 }
 
 
diff --git a/Engine/source/math/mPoint3.h b/Engine/source/math/mPoint3.h
index 12af91c4b..c1bb72923 100644
--- a/Engine/source/math/mPoint3.h
+++ b/Engine/source/math/mPoint3.h
@@ -276,8 +276,8 @@ public:
 //-------------------------------------- Point3I
 //
 inline Point3I::Point3I()
+   : x(0), y(0), z(0)
 {
-   //
 }
 
 inline Point3I::Point3I(const Point3I& _copy)
@@ -431,9 +431,7 @@ inline Point3I& Point3I::operator/=(S32 div)
 //-------------------------------------- Point3F
 //
 inline Point3F::Point3F()
-#if defined(TORQUE_OS_LINUX)
- : x(0.f), y(0.f), z(0.f)
-#endif
+ : x(0.0f), y(0.0f), z(0.0f)
 {
 // Uninitialized points are definitely a problem.
 // Enable the following code to see how often they crop up.
@@ -761,6 +759,7 @@ inline Point3F& Point3F::operator=(const Point3D &_vec)
 //-------------------------------------- Point3D
 //
 inline Point3D::Point3D()
+   : x(0.0), y(0.0), z(0.0)
 {
    //
 }
diff --git a/Engine/source/math/mPoint4.h b/Engine/source/math/mPoint4.h
index 793ff06fc..6fd371af3 100644
--- a/Engine/source/math/mPoint4.h
+++ b/Engine/source/math/mPoint4.h
@@ -39,7 +39,7 @@
 class Point4I
 {
   public:
-   Point4I() {}
+   Point4I() :x(0), y(0), z(0), w(0) {}
    Point4I(S32 _x, S32 _y, S32 _z, S32 _w);
 
    void zero();   ///< Zero all values
@@ -127,6 +127,7 @@ inline void Point4I::zero()
 //-------------------------------------- Point4F
 //
 inline Point4F::Point4F()
+   :x(0.0f), y(0.0f), z(0.0f), w(0.0f)
 {
 }
 
diff --git a/Engine/source/math/mPolyhedron.h b/Engine/source/math/mPolyhedron.h
index 3da780e0c..c52d40b8a 100644
--- a/Engine/source/math/mPolyhedron.h
+++ b/Engine/source/math/mPolyhedron.h
@@ -98,7 +98,7 @@ struct PolyhedronData
          ///   it defines a *clockwise* orientation for face[ 0 ].  This is important!
          U32 vertex[ 2 ];
 
-         Edge() {}
+         Edge() { std::fill_n(face, 2, 0), std::fill_n(vertex, 0, 0); }
          Edge( U32 face1, U32 face2, U32 vertex1, U32 vertex2 )
          {
             face[ 0 ] = face1;
diff --git a/Engine/source/math/mQuat.h b/Engine/source/math/mQuat.h
index 261b66a88..d713b405d 100644
--- a/Engine/source/math/mQuat.h
+++ b/Engine/source/math/mQuat.h
@@ -42,7 +42,7 @@ public:
   public:
    F32  x,y,z,w;
 
-   QuatF() {} // no init constructor
+   QuatF() :x(0.0f), y(0.0f), z(0.0f), w(1.0f) {} //identity constructor
    QuatF( F32 _x, F32 _y, F32 _z, F32 w );
    QuatF( const Point3F &axis, F32 angle );
    QuatF( const MatrixF & m );
diff --git a/Engine/source/math/mRandom.h b/Engine/source/math/mRandom.h
index 632925228..c69c06477 100644
--- a/Engine/source/math/mRandom.h
+++ b/Engine/source/math/mRandom.h
@@ -33,7 +33,7 @@
 class MRandomGenerator
 {
 protected:
-   MRandomGenerator() {}
+   MRandomGenerator() :mSeed(-1) {}
    S32  mSeed;
 
 public:
diff --git a/Engine/source/math/mSphere.h b/Engine/source/math/mSphere.h
index 7990f8f21..8f76dce86 100644
--- a/Engine/source/math/mSphere.h
+++ b/Engine/source/math/mSphere.h
@@ -35,7 +35,7 @@ public:
    F32     radius;
 
 public:
-   SphereF() { }
+   SphereF() :radius(1.0f) {}
    SphereF( const Point3F& in_rPosition, const F32 in_rRadius )
     : center(in_rPosition),
       radius(in_rRadius)
diff --git a/Engine/source/math/util/frustum.h b/Engine/source/math/util/frustum.h
index 9de0c4c6a..2129abd7d 100644
--- a/Engine/source/math/util/frustum.h
+++ b/Engine/source/math/util/frustum.h
@@ -186,8 +186,16 @@ struct FrustumData : public PolyhedronData
       void _update() const;
 
       FrustumData()
-         : mDirty( false ),
-           mIsInverted( false ) {}
+         : mIsOrtho(false),
+         mNearLeft(-1.0f),
+         mNearRight(1.0f),
+         mNearTop(1.0f),
+         mNearBottom(-1.0f),
+         mNearDist(0.1f),
+         mFarDist(1.0f),
+         mTransform(MatrixF(true)),
+         mDirty( false ),
+         mIsInverted( false ) {}
 
    public:
 
@@ -478,4 +486,4 @@ class Frustum : public PolyhedronImpl< FrustumData >
       /// @}
 };
 
-#endif // _MATHUTIL_FRUSTUM_H_
\ No newline at end of file
+#endif // _MATHUTIL_FRUSTUM_H_
diff --git a/Engine/source/math/util/tResponseCurve.h b/Engine/source/math/util/tResponseCurve.h
index ad5329bda..cf282acc5 100644
--- a/Engine/source/math/util/tResponseCurve.h
+++ b/Engine/source/math/util/tResponseCurve.h
@@ -73,7 +73,7 @@ public:
 
    struct Sample
    {
-      Sample() {}
+      Sample() :mF(0) { dMemset(&mVal, 0, sizeof(mVal)); }
       Sample( F32 f, const T &val ) : mF(f), mVal(val) {}
 
       F32 mF;