Jayfon was a male individual who served as a captain in the Senate Guard of the Galactic Republic. During the Clone Wars, Jayfon and his Senate Commandos were killed by bounty hunter Cad Bane and his group of mercenaries in the Senate hostage crisis.
By 21 BBY, Jayfon had obtained the rank of Captain whilst serving in the Senate Commandos of the Galactic Republic's Senate Guard. During the same time that year, a group of Bounty Hunters led by Cad Bane made their way to the Coruscant Senate Building with the intention of kidnapping the Republic Senators in order to bargain the release of Ziro the Hutt from the Republic Judiciary Central Detention Center. Just outside the building, a platoon of Senate Commandos led by Captain Jayfon went to confront the bounty hunters.
Captain Jayfon wore standard Senate Commando armour with specialized white markings reaching from his helmet to his feet. Jayfon wore a helmet similar in appearance to Faro Argyus', with the exception of a visor.