Having an error with C++ game, I'm pretty sure it's something wrong with the pointers. but i cant tell

I have no idea how yo fix this issue. it keeps telling me that I have no matching function to call to and it keeps saying no known conversion for argument 1 from 'Npc**' to 'Npc*

specifically, it's saying there's an issue with handleDialogueTwo(&nonplayer); and handleDialogueThree(&nonplayer);

I'm sure this is some dumb fix, but I've been scratching my head over it and shuffling things around for hours now. Please help

void Dungeon::handleRoomWithNpc(Room * room) {
    Npc nonplayer = room->nonplayer.front();
    cout << "Inside, you see a " << nonplayer.name << ".\n";
    string actions[] = {
        "a: Talk to " + nonplayer.name,
        "b: Fight " + nonplayer.name,
        "c: Leave",
        };
    while(true) {
        printActions(3, actions);
        string input;
        cin >> input;
        if (input == "a") {
           handleDialogueOne(&nonplayer);
           return;
        } else if (input == "b") {
            int damage = player.takeDamage(nonplayer.attack);
            cout << nonplayer.name << " hits you for " << damage << " damage! \n";
            if (player.checkIsDead()){
            return;
            };
        } else if (input == "c") {
            player.changeRooms(player.previousRoom);
            enterRoom(player.currentRoom);
            return;
        } else {
            cout << "Wrongo, Bucko.\n";
        }  
    }
}

void Dungeon::handleDialogueOne(Npc * nonplayer) {
    cout << nonplayer->dialogueOne;
    string actions[] = {
            "a: continue",
            "b: die",
            "c: fight",
        };
    while(true) {
        printActions(3, actions);
        string input;
        cin >> input;
        if (input == "a") {
            handleDialogueTwo(&nonplayer);
            return;
        } else if (input == "b") {
            int damage = player.takeDamage(nonplayer->attack);
            cout << nonplayer->name << " hits you for " << damage << " damage! \n";
            if (player.checkIsDead()){
            return;
            }
        } else if (input == "c") {
            int damage = player.takeDamage(nonplayer->attack);
            cout << nonplayer->name << " hits you for " << damage << " damage! \n";
            if (player.checkIsDead()){
            return;
            };
        } else {
            cout << "Wrongo, Bucko!\n";
        }
    }     
}

void Dungeon::handleDialogueTwo(Npc * nonplayer) {
    cout << nonplayer->dialogueTwo;
    string actions[] = {
            "a: continue",
            "b: die",
            "c: fight",
        };
    while(true) {
        printActions(3, actions);
        string input;
        cin >> input;
        if (input == "a") {
            handleDialogueThree(&nonplayer);
            return;
        } else if (input == "b") {
            int damage = player.takeDamage(nonplayer->attack);
            cout << nonplayer->name << " hits you for " << damage << " damage! \n";
            if (player.checkIsDead()){
            return;
            }
        } else if (input == "c") {
            int damage = player.takeDamage(nonplayer->attack);
            cout << nonplayer->name << " hits you for " << damage << " damage! \n";
            if (player.checkIsDead()){
            return;
            };
        } else {
            cout << "Wrongo, Bucko!\n";
        }
    }     
}

void Dungeon::handleDialogueThree(Npc * nonplayer) {
    cout << nonplayer->dialogueThree;
    string actions[] = {
            "a: continue",
            "b: die",
            "c: win",
        };
    while(true) {
        printActions(3, actions);
        string input;
        cin >> input;
        if (input == "a") {
            handleDialogueTwo(&nonplayer);
            return;
        } else if (input == "b") {
            int damage = player.takeDamage(nonplayer->attack);
            cout << nonplayer->name << " hits you for " << damage << " damage! \n";
            if (player.checkIsDead()){
            return;
            };
        } else if (input == "c") {
            nonplayer->currentHealth = 0;
            return;
        } else {
            cout << "Wrongo, Bucko!\n";
        }
    }     
}

The data nonplayer has type Npc * and the type of the callee's argument is also Npc *, so you won't need & in handleDialogueTwo(&nonplayer); and handleDialogueThree(&nonplayer);. Remove them.