diff --git a/src/main/java/ch/unibas/dmi/dbis/cs108/Klassenstruktur/Ghost.java b/src/main/java/ch/unibas/dmi/dbis/cs108/Klassenstruktur/Ghost.java
new file mode 100644
index 0000000..5a26664
--- /dev/null
+++ b/src/main/java/ch/unibas/dmi/dbis/cs108/Klassenstruktur/Ghost.java
@@ -0,0 +1,4 @@
+package ch.unibas.dmi.dbis.cs108.Klassenstruktur;
+
+public class Ghost extends Passenger {
+}
diff --git a/src/main/java/ch/unibas/dmi/dbis/cs108/Klassenstruktur/GhostNPC.java b/src/main/java/ch/unibas/dmi/dbis/cs108/Klassenstruktur/GhostNPC.java
new file mode 100644
index 0000000..51986ed
--- /dev/null
+++ b/src/main/java/ch/unibas/dmi/dbis/cs108/Klassenstruktur/GhostNPC.java
@@ -0,0 +1,14 @@
+package ch.unibas.dmi.dbis.cs108.Klassenstruktur;
+
+public class GhostNPC extends Ghost{
+
+    public GhostNPC(int position, String name) {
+        this.position = position;
+        isGhost = true;
+        isPlayerCharacter = false;
+        kickedOff = false;
+        if (name == null) {
+            this.name = "Robot Nr. " + position;
+        } else this.name = name;
+    }
+}
diff --git a/src/main/java/ch/unibas/dmi/dbis/cs108/Klassenstruktur/Passenger.java b/src/main/java/ch/unibas/dmi/dbis/cs108/Klassenstruktur/Passenger.java
new file mode 100644
index 0000000..7d59019
--- /dev/null
+++ b/src/main/java/ch/unibas/dmi/dbis/cs108/Klassenstruktur/Passenger.java
@@ -0,0 +1,56 @@
+package ch.unibas.dmi.dbis.cs108.Klassenstruktur;
+
+public class Passenger {
+    protected int position;               //the player's Cabin number (1 to 6)
+    protected String name;                //the player's Name
+    protected Boolean isGhost;            //boolean regarding if the player is a ghost. Could probably be removed since ghost is a subclass but I'm keeping it in.
+    protected Boolean isPlayerCharacter;  //same here
+    protected Boolean kickedOff;          //true if the player has been voted off.
+
+    //todo: there needs to be some variable which keeps track of which client socket / clientThread / NPC thread this passenger is connected to?
+
+
+    /**
+     * Sends a protocol message to the respective player.
+     * @param msg the message that is sent to this player.
+    **/
+    public void send(String msg) {
+        //todo: send protocol message to the respective client
+    }
+
+    /**
+     * sets the name of this passenger.
+     * @param name the new name for this passenger.
+     */
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    /**
+     * sets the kickedOff status of this Passenger
+     * @param kickedOff should be set to true if the passenger has been kicked off.
+     */
+    public void setKickedOff(boolean kickedOff) {
+        this.kickedOff = kickedOff;
+    }
+
+    public int getPosition() {
+        return position;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Boolean getIsGhost() {
+        return isGhost;
+    }
+
+    public Boolean getKickedOff() {
+        return kickedOff;
+    }
+
+    public Boolean getPlayerCharacter() {
+        return isPlayerCharacter;
+    }
+}