Walt's pride and hunger for power are at odds with his instinct for self-preservation. His ego often lands him in hot water.
Gus is a ruthless kingpin who has no qualms killing those that cross him. When Walt defies him, a deadly battle of wits ensues.
Hank may be family, but the DEA agent's dogged pursuit of Heisenberg remains a constant threat to Walt's freedom.
A mercenary neo-Nazi, Jack will kill anyone for money. He'll also kill anyone who gets in his way, including Walt.
A meth user, Tuco's violent outbursts leave one of his men dead, Jesse hospitalized and Walt a hostage in Tio's desert shack.
Hailing from the Juarez Cartel, the remorseless Cousins are determined to avenge Tuco's death by killing Walt.
Furious with Walt's lies, Skyler flaunts an affair with her boss, sends the kids away and openly declares her desire for Walt to die of cancer.
As methodical as he is deadly, Mike resents Walt's arrogance and unpredictability and tries several times to bring him down.
The silent but deadly former Mexican Cartel member blames Walt for Tuco's death and orders Walt's death as retribution.
A distributor and DEA informant, Krazy-8 holds Walt and Jesse at gunpoint, then later tries to stab Walt to death with a plate shard.