Trogdor
From Homestar Runner Wiki
Template:Headcrab Infobox The Zombine or Combine Zombie was the result of a headcrab attaching to a Combine soldier. Alyx Vance coined the term "Zombine" as a portmanteau of "Zombie" and "Combine".
The appearance of the Zombine is evidence that the Combine were losing control of City 17 following the near-destruction of the Citadel by Gordon Freeman. Prior to the human uprising there had been very few headcrabs in the city, and only in the more run-down areas. The combined effect of the damage dealt to the Citadel, the temporary defeat of Combine forces, and the use of headcrab shells against rebel safehouses during the uprising clearly allowed them to roam more freely.
Though Zombines moved slower than fast headcab zombies, they were capable of short sprints. They were also tougher to kill due to their bloodied but intact armour. In addition to attacking with their claws, Zombines sometimes used the grenades on their belt, though they would continue holding on to the active grenade, using it as a club until it exploded. This attack could be stopped by using the gravity gun to yank the grenade out of its hand and launching it away (This also nets you the "Grave Robber" Achievement in the Xbox 360 version of The Orange Box).
Zombine groans were filtered through the soldier's vocoder. This "speech" consisted not only of Zombie growls but also Combine soldier reports, such as "Necrotics inbound" or "Sector's not secure", suggesting that the host was aware of what it was doing.
It is interesting to note that the removal of a Zombine's headcrab reveals that, aside from the lower jaw and small lower portion of skull, no head or helmet remains on the soldier's corpse.