Jake Sisko is the son of Benjamin Sisko, now ex-commander of the fictional Deep Space Nine. Initial worries that he would be a Wesley Crusher clone proved groundless when Jake declined Starfleet Academy.
He went from being a tiny whiny-butt to a tall mother-fucker whiny-butt.
He's also best friends with Nog who did join Starfleet but at least isn't the typical save everyone now genius farthole.