|Grommash "Grom" Hellscream|
Grom in the Warlords of Draenor cinematic
|Warchief of the Iron Horde|
Alive (alternate reality), Deceased
Perhaps 2.20 meters
Iron Horde (alternate reality)
Golmash Hellscream (father), Golka (mate), Garrosh Hellscream (son)
Grommash "Grom" Hellscream is the name of an orc Warchief of the Horde. He was given the Blood of Mannoroth by Gul'dan and went on a rampage throughout Azeroth. He soon, joined by Thrall, killed Mannoroth, but died in the process, saying he freed the orcs.
In the Iron Horde Reality, Grom's son, Garrosh Hellscream travels back to old Draenor to stop his father from drinking the Blood of Mannoroth. In the meantime they also form the Iron Horde, lead by Grom and the Warlords of Draenor. In an epic fight against Mannoroth, who is killed by Grom, Gul'dan is taken captive by the Iron Horde, and they take over Draenor.
Later Grommash is taken captive by a freed Gul'dan, who later corrupts Tanaan Jungle and destroys the Iron Citadel, turning it into the Hellfire Citadel. Grom is tortured by Fel Lord Zakuun in Hellfire Citadel, but is eventually freed when adventurers kill the Fel Lord. Later, Grom assists in taking down Archimonde at the Black Gate in Hellfire Citadel, and Draenor is soon freed from the Burning Legion.