Morty and McGurk

Morty and McGurk are the (former) secondary antagonists of The Lorax. They are Aloysius O'Hare's henchmen and bodyguards.

Morty and McGurk aren't differentiated and were only named once, by O'Hare himself while he tries to take the seed from Ted's house.

They usually have no speaking parts (though one of them says "Ooh.", when he bumped into O'Hare with the O'Hare van).

In the end, even Morty and McGurk turn against O'Hare, with the round-glasses wearing one of the two ejecting their former boss out of town by way of his rocket helmet. He is also the one that O'Hare is seen with most frequently and perhaps is preferred over the other.

Personalities
The two of them seem to lack any evil personality at all and are muscular characters. They are very loyal and respectful to O'Hare until the end of the film.

Role
They are Aloysius O'Hare's bodyguards and serve little role beyond aiding him in his endeavor to prevent Ted from bringing the seed into Thneedville and planting it. They aid him well, but eventually turn on him.