Hi Rezu2215,
Instead of returning List<Employee> return anonymous type and pass the anonymous type to return JsonResult.
Database
For this example I have used of Northwind database that you can download using the link given below.
Download Northwind Database
Controller
public class HomeController : Controller
{
    // GET: /Home/
    public ActionResult Index()
    {
        return View();
    }
    public JsonResult Get_AllEmployee()
    {
        using (EmpolyeesEntities Obj = new EmpolyeesEntities())
        {
            var Emp = Obj.Employees.Select(x => new
            {
                ID = x.EmployeeID,
                Name = x.FirstName + " " + x.LastName,
                City = x.City,
                Country = x.Country
            }).ToList();
            return Json(Emp, JsonRequestBehavior.AllowGet);
        }
    }
}
View
<div ng-app="myApp">
    <div ng-controller="myCtrl" ng-init="GetAllData()" class="divList">
        <h3>List of Employee</h3>
        <table cellpadding="12" class="table table-bordered table-hover">
            <tr>
                <th>ID</th>
                <th>Name</th>
                <th>City</th>
                <th>Country</th>
                <th></th>
            </tr>
            <tr ng-repeat="Emp in employees">
                <td>{{Emp.ID}}</td>
                <td>{{Emp.Name}}</td>
                <td>{{Emp.City}}</td>
                <td>{{Emp.Country}}</td>
                <td>
                    <input type="button" class="btn btn-warning" value="Update" ng-click="UpdateEmp(Emp)" />
                    <input type="button" class="btn btn-danger" value="Delete" ng-click="DeleteEmp(Emp)" />
                </td>
            </tr>
        </table>
    </div>
</div>
AngularCode
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" />
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.9/angular.min.js"></script>
<script type="text/javascript">
    var app = angular.module("myApp", []);
    app.controller("myCtrl", function ($scope, $http) {
        $scope.GetAllData = function () {
            $http({
                method: "get",
                url: "http://localhost:38534/Home/Get_AllEmployee"
            }).then(function (response) {
                $scope.employees = response.data;
            }, function (response) {
                alert("Error Occur");
            })
        };
    });
</script>
Screenshot
