Second in command of the expedition into Northrend, Baelgun Flamebeard served under the leadership of Muradin Bronzebeard. When Muradin was "killed", Baelgun took command of the remaining dwarves and led them deeper into the heart of the frozen land, straight into Icecrown Glacier. When Illidan Stormrage used the Eye of Sargeras in an attempt to destroy the Frozen Throne, the tunnels of Azjol-Nerub were shaken by earthquakes which freed long-forgotten monstrosities called the Faceless Ones. Driven out of the lower tunnels by their malicious attacks, Baelgun and his people sealed the entrance to the Inner Kingdom, guarding it to keep the Faceless Ones within. When Prince Arthas entered, Baelgun warned him that there was an ancient evil within the Inner Kingdom. But Arthas paid him little heed, and attacked Baelgun and his forces, defeating them.
This dwarf is short and stocky, even for one of his race. His flame-red beard looks like it would brush the top of his boots when loose, though a double braid hangs only to his knees. He scowls beneath his thick red eyebrows, and his battered nose is all but lost between brow and beard. In battle Baelgun is a fierce and wily opponent, leaping into the fray and swinging from side to side, deliberately using his braids to distract opponents from his whirling hammer. Baelgun is smart enough to retreat when the odds turn against him, and he is not above attacking from behind — though with his bulk and coloring he is not built for stealth. Since Muradin Bronzebeard’s "death" Baelgun is the leader of the Bronzebeard Expedition. He and the other survivors are camped near the entrance to Azjol-Nerub and guard it to ensure that nothing escapes from within. They do not know that Muradin had survived.
Wrath of the Lich King
Baelgun does not appear in Wrath of the Lich King, but while Doorward, Baelgun's camp near the massive, blood red door leading down to the depths of the Old Kingdom is not seen, Baelgun's Excavation Site in the Howling Fjord exists. Anub'arak drops Flamebeard's Bracers in Azjol-Nerub and Baelgun's Heavy Crossbow in the Crusaders' Coliseum.
In LegionThis section concerns content exclusive to Legion.
Baelgun was freed when Frostmourne was destroyed. However, his soul now roams Icecrown Citadel, forced to repeat the moment of his demise.