diff --git a/dotnet/src/webdriver/Interactions/ActionBuilder.cs b/dotnet/src/webdriver/Interactions/ActionBuilder.cs
index 92b2b1e260c25..b9f4f92f94feb 100644
--- a/dotnet/src/webdriver/Interactions/ActionBuilder.cs
+++ b/dotnet/src/webdriver/Interactions/ActionBuilder.cs
@@ -27,7 +27,7 @@ namespace OpenQA.Selenium.Interactions
     /// Provides methods that allow the creation of action sequences to enable
     /// advanced user interactions.
     /// </summary>
-    internal class ActionBuilder
+    public class ActionBuilder
     {
         private Dictionary<InputDevice, ActionSequence> sequences = new Dictionary<InputDevice, ActionSequence>();
 
diff --git a/dotnet/src/webdriver/Interactions/ActionSequence.cs b/dotnet/src/webdriver/Interactions/ActionSequence.cs
index dafdfa00b776b..f94bcca754730 100644
--- a/dotnet/src/webdriver/Interactions/ActionSequence.cs
+++ b/dotnet/src/webdriver/Interactions/ActionSequence.cs
@@ -27,7 +27,7 @@ namespace OpenQA.Selenium.Interactions
     /// <summary>
     /// Represents a sequence of actions to be performed in the target browser.
     /// </summary>
-    internal class ActionSequence
+    public class ActionSequence
     {
         private List<Interaction> interactions = new List<Interaction>();
         private InputDevice device;
diff --git a/dotnet/src/webdriver/Interactions/InputDevice.cs b/dotnet/src/webdriver/Interactions/InputDevice.cs
index f53842787957a..7b4efa45dfff8 100644
--- a/dotnet/src/webdriver/Interactions/InputDevice.cs
+++ b/dotnet/src/webdriver/Interactions/InputDevice.cs
@@ -25,7 +25,7 @@ namespace OpenQA.Selenium.Interactions
     /// <summary>
     /// Base class for all input devices for actions.
     /// </summary>
-    internal abstract class InputDevice
+    public abstract class InputDevice
     {
         private string deviceName;
 
diff --git a/dotnet/src/webdriver/Interactions/InputDeviceKind.cs b/dotnet/src/webdriver/Interactions/InputDeviceKind.cs
index 3ca3fa68c17b5..0386ff8bdc224 100644
--- a/dotnet/src/webdriver/Interactions/InputDeviceKind.cs
+++ b/dotnet/src/webdriver/Interactions/InputDeviceKind.cs
@@ -21,7 +21,7 @@ namespace OpenQA.Selenium.Interactions
     /// <summary>
     /// Enumerated values for the kinds of devices available.
     /// </summary>
-    internal enum InputDeviceKind
+    public enum InputDeviceKind
     {
         /// <summary>
         /// Represents the null device.
diff --git a/dotnet/src/webdriver/Interactions/Interaction.cs b/dotnet/src/webdriver/Interactions/Interaction.cs
index 85b9626cd8f03..2ec2c72ab56de 100644
--- a/dotnet/src/webdriver/Interactions/Interaction.cs
+++ b/dotnet/src/webdriver/Interactions/Interaction.cs
@@ -26,7 +26,7 @@ namespace OpenQA.Selenium.Interactions
     /// <summary>
     /// Represents a single interaction for a given input device.
     /// </summary>
-    internal abstract class Interaction
+    public abstract class Interaction
     {
         private InputDevice sourceDevice;
 
diff --git a/dotnet/src/webdriver/Internal/IActionExecutor.cs b/dotnet/src/webdriver/Internal/IActionExecutor.cs
index 922a5c05aaa32..49a98767734cd 100644
--- a/dotnet/src/webdriver/Internal/IActionExecutor.cs
+++ b/dotnet/src/webdriver/Internal/IActionExecutor.cs
@@ -27,7 +27,7 @@ namespace OpenQA.Selenium.Internal
     /// <summary>
     /// Interface allowing execution of W3C Specification-compliant actions.
     /// </summary>
-    internal interface IActionExecutor
+    public interface IActionExecutor
     {
         /// <summary>
         /// Gets a value indicating whether this object is a valid action executor.
@@ -38,7 +38,7 @@ internal interface IActionExecutor
         /// Performs the specified list of actions with this action executor.
         /// </summary>
         /// <param name="actionSequenceList">The list of action sequences to perform.</param>
-        void PerformActions(List<ActionSequence> actionSequenceList);
+        void PerformActions(IList<ActionSequence> actionSequenceList);
 
         /// <summary>
         /// Resets the input state of the action executor.
diff --git a/dotnet/src/webdriver/Remote/RemoteWebDriver.cs b/dotnet/src/webdriver/Remote/RemoteWebDriver.cs
index 7f980062163dc..64bba89eff32c 100644
--- a/dotnet/src/webdriver/Remote/RemoteWebDriver.cs
+++ b/dotnet/src/webdriver/Remote/RemoteWebDriver.cs
@@ -68,7 +68,7 @@ public class RemoteWebDriver : IWebDriver, ISearchContext, IJavaScriptExecutor,
         /// </summary>
         protected static readonly TimeSpan DefaultCommandTimeout = TimeSpan.FromSeconds(60);
 
-        private static readonly string DefaultRemoteServerUrl = "http://127.0.0.1:4444/wd/hub";
+        private const string DefaultRemoteServerUrl = "http://127.0.0.1:4444/wd/hub";
 
         private ICommandExecutor executor;
         private ICapabilities capabilities;
@@ -85,7 +85,7 @@ public class RemoteWebDriver : IWebDriver, ISearchContext, IJavaScriptExecutor,
         /// </summary>
         /// <param name="options">An <see cref="DriverOptions"/> object containing the desired capabilities of the browser.</param>
         public RemoteWebDriver(DriverOptions options)
-            : this(options.ToCapabilities())
+            : this(ConvertOptionsToCapabilities(options))
         {
         }
 
@@ -104,7 +104,7 @@ public RemoteWebDriver(ICapabilities desiredCapabilities)
         /// <param name="remoteAddress">URI containing the address of the WebDriver remote server (e.g. http://127.0.0.1:4444/wd/hub).</param>
         /// <param name="options">An <see cref="DriverOptions"/> object containing the desired capabilities of the browser.</param>
         public RemoteWebDriver(Uri remoteAddress, DriverOptions options)
-            : this(remoteAddress, options.ToCapabilities())
+            : this(remoteAddress, ConvertOptionsToCapabilities(options))
         {
         }
 
@@ -415,7 +415,7 @@ public SessionId SessionId
         /// <summary>
         /// Gets a value indicating whether this object is a valid action executor.
         /// </summary>
-        bool IActionExecutor.IsActionExecutor
+        public bool IsActionExecutor
         {
             get { return this.IsSpecificationCompliant; }
         }
@@ -940,8 +940,13 @@ public void Dispose()
         /// Performs the specified list of actions with this action executor.
         /// </summary>
         /// <param name="actionSequenceList">The list of action sequences to perform.</param>
-        void IActionExecutor.PerformActions(List<ActionSequence> actionSequenceList)
+        public void PerformActions(IList<ActionSequence> actionSequenceList)
         {
+            if (actionSequenceList == null)
+            {
+                throw new ArgumentNullException("actionSequenceList", "List of action sequences must not be null");
+            }
+
             if (this.IsSpecificationCompliant)
             {
                 List<object> objectList = new List<object>();
@@ -959,7 +964,7 @@ void IActionExecutor.PerformActions(List<ActionSequence> actionSequenceList)
         /// <summary>
         /// Resets the input state of the action executor.
         /// </summary>
-        void IActionExecutor.ResetInputState()
+        public void ResetInputState()
         {
             if (this.IsSpecificationCompliant)
             {
@@ -1117,14 +1122,14 @@ protected void StartSession(ICapabilities desiredCapabilities)
         /// <summary>
         /// Gets the capabilities as a dictionary supporting legacy drivers.
         /// </summary>
-        /// <param name="capabilities">The dictionary to return.</param>
+        /// <param name="legacyCapabilities">The dictionary to return.</param>
         /// <returns>A Dictionary consisting of the capabilities requested.</returns>
         /// <remarks>This method is only transitional. Do not rely on it. It will be removed
         /// once browser driver capability formats stabilize.</remarks>
-        protected virtual Dictionary<string, object> GetLegacyCapabilitiesDictionary(ICapabilities capabilities)
+        protected virtual Dictionary<string, object> GetLegacyCapabilitiesDictionary(ICapabilities legacyCapabilities)
         {
             Dictionary<string, object> capabilitiesDictionary = new Dictionary<string, object>();
-            DesiredCapabilities capabilitiesObject = capabilities as DesiredCapabilities;
+            DesiredCapabilities capabilitiesObject = legacyCapabilities as DesiredCapabilities;
             foreach (KeyValuePair<string, object> entry in capabilitiesObject.CapabilitiesDictionary)
             {
                 capabilitiesDictionary.Add(entry.Key, entry.Value);
@@ -1136,14 +1141,14 @@ protected virtual Dictionary<string, object> GetLegacyCapabilitiesDictionary(ICa
         /// <summary>
         /// Gets the capabilities as a dictionary.
         /// </summary>
-        /// <param name="capabilities">The dictionary to return.</param>
+        /// <param name="capabilitiesToConvert">The dictionary to return.</param>
         /// <returns>A Dictionary consisting of the capabilities requested.</returns>
         /// <remarks>This method is only transitional. Do not rely on it. It will be removed
         /// once browser driver capability formats stabilize.</remarks>
-        protected virtual Dictionary<string, object> GetCapabilitiesDictionary(ICapabilities capabilities)
+        protected virtual Dictionary<string, object> GetCapabilitiesDictionary(ICapabilities capabilitiesToConvert)
         {
             Dictionary<string, object> capabilitiesDictionary = new Dictionary<string, object>();
-            DesiredCapabilities capabilitiesObject = capabilities as DesiredCapabilities;
+            DesiredCapabilities capabilitiesObject = capabilitiesToConvert as DesiredCapabilities;
             foreach (KeyValuePair<string, object> entry in capabilitiesObject.CapabilitiesDictionary)
             {
                 if (entry.Key != CapabilityType.Version && entry.Key != CapabilityType.Platform)
@@ -1438,6 +1443,16 @@ private static void UnpackAndThrowOnError(Response errorResponse)
             }
         }
 
+        private static ICapabilities ConvertOptionsToCapabilities(DriverOptions options)
+        {
+            if (options == null)
+            {
+                throw new ArgumentNullException("options", "Driver options must not be null");
+            }
+
+            return options.ToCapabilities();
+        }
+
         private object ParseJavaScriptReturnValue(object responseValue)
         {
             object returnValue = null;