generatedCsharp.cs

public class Friend
{
    public string name { get; set; }
    public string occupation { get; set; }
}

public class Enemy
{
    public string name { get; set; }
    public string characteristics { get; set; }
    public int? numEyes { get; set; }
}

public class RootObject
{
    public string name { get; set; }
    public string occupation { get; set; }
    public List<Friend> friends { get; set; }
    public List<Enemy> enemies { get; set; }
}

someJson

{
    "name": "Tim",
    "occupation": "enchanter",
    "friends": [
        {"name": "Arthur", "occupation": "king" },
        {"name": "Sir Robin", "occupation": "knight" }
    ],
    "enemies": [
        { "name": "rabbit", "characteristics": "vicious streak" },
        { "name": "Black Beast of Aaaaarrrrrrggghhh", "numEyes": 24 }
    ]
}