felix.cs

public class Dependant
{
    public string id_number { get; set; }
    public string relationship { get; set; }
    public string last_name { get; set; }
    public string first_name { get; set; }
    public string gender { get; set; }
    public string birthdate { get; set; }
    public string photo { get; set; }
}

public class Attributes
{
    public string last_name { get; set; }
    public string first_name { get; set; }
    public string id_number { get; set; }
    public string gender { get; set; }
    public string birthdate { get; set; }
    public string emp_name { get; set; }
    public string email { get; set; }
    public string phone { get; set; }
    public string branch_no { get; set; }
    public string emp_no { get; set; }
    public string photo { get; set; }
    public string marital_status { get; set; }
    public List<Dependant> dependants { get; set; }
}

public class Data
{
    public string type { get; set; }
    public Attributes attributes { get; set; }
}

public class RootObject
{
    public Data data { get; set; }
}