"Little" Notting (full name unrevealed) was the founder and leader of the 52 Gang. He took the title of Ace of Spades. He had dark hair, heavy eyebrows, prominent lips, and a letter A tattooed on his forehead. At some point in the past, he had been convicted of murder and escaped from prison.
Ace of Spades arranged for the King of Spades (his most trusted confederate) to steal the Space Coupe and kidnap Dyne O'Matick so the gang could get rid of its enemies more easily. Ace was captured by Dick Tracy who had infiltrated the gang. Tracy unmasked and arrested Ace. He warned the gang to give themselves up, but they ignored him and were apparently all killed.
Years later, a man addressed as "Mr. Notting" was shown to be on the high council of the Apparatus. He stated that he preferred to be known as "Ace of Spades" (January 3, 2016). It has not been officially confirmed that this is the original Ace of Spades.
- There is no apparent connection between Ace of Spades and Big Ace.
- Due to inconsistency in the artwork and lettering, Ace of Spades and King of Spades were often interchanged. For example, Ace of Spades was sometimes depicted as heavyset, while other times he was shown as more slender (as was King of Spades).
- Notting's facial features bear some resemblance to Flyface.