|“Sons of Garmadon, no longer shall I be the Quiet One! No longer shall I be silent and no longer shall you, for our father has returned!”|
|— Harumi to the Sons of Garmadon|
The Sons of Garmadon (abbreviated as S.O.G.) is a villainous biker organization originally led by Harumi, the Quiet One.
- Chopper Maroon is a low-ranking biker, also known as "The Maroon Mask." (Alive; Incarcerated)
- Colossus, a giant rock titan created by Garmadon. (Stone Giant; Destroyed)
- Harumi is the Jade Princess, an empress, and the original leader of the Sons of Garmadon, then second-in-command to Lord Garmadon after his resurrection. She is commonly referred to as the "Quiet One." She vowed revenge on the Ninja (especially Lloyd) for failing to stop the Great Devourer. She experienced this before she was killed by the Colossus controlled by Skylor when he crashed into the building she was standing on. She possessed the Oni Mask of Hatred. (Second In Command; Deceased)
- Killow is the third general. He is a behemoth who wields a giant spiky club. He is in charge of recruitment into the Sons. He possessed the Oni Mask of Deception. (General; Incarcerated)
- Lord Garmadon is the most powerful member and leader of the organization, outranking Harumi. He was resurrected into a heartless and purely evil being by the Sons of Garmadon at the Temple of Resurrection in order to defeat the Ninja and take over Ninjago. He once reigned as Emperor, but he was overthrown by Lloyd, his son. (Elemental Master of Destruction and Creation/Leader; Alive)
- Luke Cunningham, an avid biker, also known as "The White Mask." Cole calls him "The Man Behind The White Mask." (Alive; Incarcerated)
- Mohawk is a low-ranking biker. He is friends with Nails. (Alive; Incarcerated)
- Mr. E is the mysterious first general who spoke only once. When he did, he did it in reverse. He was a Nindroid. He was killed by Garmadon after failing to capture Lloyd as warning to the others. He possessed the Oni Mask of Vengeance. (General; Destroyed)
- Nails is the member that looks like Chopper Maroon. He has less stars on his head and has shorter legs. (Alive; Incarcerated)
- The Painted Warrior is a warrior with paint all over her face. She is known to be one of the most dangerous members in the gang. (Alive; Incarcerated)
- Skip Vicious/Sawyer is one of the members of the Sons of Garmadon. (Alive; Incarcerated)
- Ultra Violet is the second general. She has pale skin and a long ponytail. She is known to be crazy. She hosted Ultra Hunt. She also possessed the Oni Mask of Hatred. (General; Incarcerated)
- A female warrior that married Chopper Maroon. (Alive; Incarcerated)
- An unnamed female warrior with yellow hair. (Alive; Incarcerated)
- A male warrior looking similar to Sawyer. He is possibly him. (Alive; Incarcerated)
- A random biker that appears at the beginning of the Sons of Garmadon intro. (Unknown)
- Rocky Dangerbuff is an alias of Cole when he attempted to sneak into the Sons. (Ninja-in-Disguise)
- Snake Jaguar is an alias of Zane when he attempted to sneak into the Sons. (Ninja-in-Disguise)
- The suits that the Sons of Garmadon heist team wear during their heist in "The Mask of Deception" have the same matching colors of the six Ninja.
- They were named after a real-life outlaw motorcycle club known as the "Sons of Silence".
- They refer to Lord Garmadon as their "father".
- After Garmadon successfully took over Ninjago City, the warriors acted as his police force and imprisoned the Ninjago Police. This force was abolished after Garmadon was overthrown.
- Mr. E is the first general to be killed. He was the first Sons of Garmadon member to die onscreen, but it is unknown if another member died before this.
- They are the second villainous faction to be the faction of more than one season, the first being the Serpentine in Rise of the Snakes and Legacy of the Green Ninja.
- They are the second cult to appear in a season, the first cult being the Anacondrai Cult.
- They are the third villainous faction to consist of mainly humans, the first being the Anacondrai Cultists and the second being the some of the Sky Pirates.
- The Sons of Garmadon share a few traits with the Whack Rats, such as having a mysterious leader and considered being at low reputation by populations.
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