Sprocket Nitrate

First Appearance:

January 6th, 2014

Known Relatives:

Unnamed Adoptive Parents
Silver Nitrate, Adoptive Brothter

Known Associates:

Miles Mycroft (Deceased)
Public Domain

Created By:

Mike Curtis &
Joe Staton

Can Be Found:

Dick Tracy Meets the Film Pirates

The criminal known as Sprocket Nitrate was the adoptive sister of Silver Nitrate. She had dark hair that she wore long and straight. She typically wore dark glasses and disliked wearing shoes.

Sprocket and Silver had a very close relationship, though they were both known to lash out in anger at the other on occasion. Their adoptive parents had reportedly been criminals also, specializing in film-based confidence schemes.

Tricking Flintheart Edit

The Nitrates first became known to Dick Tracy when they attempted to sell Tracy's friend Vitamin Flintheart a fraudulent recreation of one of his early television roles. Flintheart recognized the deception and informed Tracy. When they realized that their ruse had been discovered, the Nitrates fled (after killing their accomplice Miles Mycroft and feeding the corpse to their pet hyena named Lena).

The Nitrates took possession of their specially-modified super-car (which had previously belonged to Flattop Jones Jr.) from the exhibition to the which they had loaned it. They were spotted by police and a chase ensued. In a rage over their predicament, Silver struck Sprocket in the face. Sprocket then drove the car into a nearby large body of water, seemingly intent on killing them both.

The car and the Nitrates were not recovered.

Agate Aggie and Mrs. Flattop Edit

Unbeknownst to police, the super-car had been augmented in a way that allowed for underwater travel and the Nitrates survived their ordeal. They re-surfaced some time later and contacted the actress known as Agate Aggie. Using a scheme similar to the one they had attempted with Flintheart, the Nitrates attempted to sell Aggie a print of an early commercial that she had made (and had been presumed lost to the ages).

Before the scheme could come to fruition, the Nitrates were visited by Stiletta Jones, aka "Mrs. Flattop". She attempted to recruit them into her scheme to get revenge on Dick Tracy by kidnapping Tracy's newborn grandson. Sprocket, appalled by the idea, hurled a large metal film contained at Stiletta. The impact killed Stiletta and the Nitrates fled.

Due to their easily identifiable appearance and habits, the Nitrates were caught and taken into police custody. Sprocket confessed to her role in Mrs. Flattop's death.

Freed by Public Domain Edit

Later, as the Nitrates were being transferred (separately) from one facility to another, they were freed from police custody by agents of Public Domain, another con man. The Nitrates were reunited and brought to Domain, who wanted to recruit them into his latest scheme.

While Silver was preparing his part of Domain's plan, Sprocket became annoyed. She had wanted to leave the criminal life at the conclusion of their current job, but discovered that Silver was already planning a new confidence scam. It was around this time that Dick Tracy and the MCU learned that Silver and Sprocket were not biologically related.


  • Sprockets are part of the internal mechanics of film projectors.
  • It is not clear if "Sprocket" is her actual name or an alias.
  • It was eventually revealed that Sprocket was older than Silver.
  • Sprocket's dislike of shoes was a habit she shared with Blossom Plenty.
  • Sprocket was apparently allowed to keep her dark eyeglasses while in jail, indicating that they may serve some medical purpose.
  • Sprocket's prisoner number was 715984.

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