Angular , 2 JSON endpoints loaded, 1 ngrepeat. how to replace 1 within the other?

I have 2 endpoints ( which I do not think they are related) from jsonplaceholder:

jsonplaceholder.typicode.com/todos

jsonplaceholder.typicode.com/users

In my angular app I can pull the todo items. The todo items have a userId value.

I've loaded the 2 JSON objects with ngresource. If I use 2 ng-repeats I can pull todos and users separately, obviously.

So, the question is ...instead of those userId...can I replace them with the actual user names, eventough they might not be related or nested?

HTML

 <tbody>
        <tr ng-repeat="todo in todos ">
            <td>{{todo.userId}}</td>
            <td>{{todo.id.name}}</td>
            <td>{{todo.title}}</td>
            <td>{{todo.completed?'COMPLETED':'INCOMPLETE'}}</td>
            <td> <button type="button" ng-click="UpdateTodo($index, true)" class="btn btn-info">Update</button> </td>
         </tr>
        </tbody>

My service

skillzApp.factory('Users', function($resource){
    return $resource('h://jsonplaceholder.typicode.com/users/:user', {user:'@user'})
});


skillzApp.factory('UserTodos', function($resource) {
    var data = $resource('h://jsonplaceholder.typicode.com/todos/:todo', {todo:'@todo'}, {
        update: {
            method: 'PUT'
        }
    });
return data;
});

Controller:

'use strict';

skillzApp.controller("SkillController", function  ($scope,  UserTodos, Users) {

    $scope.todos = UserTodos.query();
    $scope.users = Users.query();


    $scope.UpdateTodo = function(index, value) {

        $scope.todos[index].completed = value;



    };

});

See pic, user name needs to be in blank space Snapshot