The plotters or conspirators besides Guy Fawkes were:
Robert Catesby ( mover of the scheme) Catesby first recruited his close friends and relatives:
Thomas Wintour, Jack Wrigt and Thomas Percy (convert), but the group quickly grew to include Guido Fawkes. Soon after Fawkes, others who joined were Robert Wintour, Christopher (Kit ) and John Wright (brothers), Robert Keyes, Thomas Bates (servant of Catesby). Latecomers to the group were John Grant(married Wintours´ sister, Ambrose Rookwood (young, educated abroad), Francis Tresham (argued to postpone plor), and Sir Everard Digby ( sent horses for conspirators). In all, there were 13 conspirators in the Gunpowder Plot And Hugh Owen who introduced Fawkes to Catesby.
If Robert Catesby was the leader, how did Guy Fawkes become the most famous member of the Gunpowder Plot?
Guy Fawkes was the one who was caught under the House of Lords with 36 barrels of gunpowder. For two days, Guido was the only suspect in custody and his name became synonymous with the Powder Treason, as the Gunpowder Plot was known at the time.
Guy wasn't in prison alone for long. Soon, many conspirators were either caught outright as they flew from London, or surrenderred shortly thereafter. Some, however, including the ringleader Robert Catesby, were killed in a siege within a few days of the failed attempt.
All the conspirators who were not killed in the siege were imprisonned, tortured, and executed publicly in March 1607 in the most gruesome way- they were "hanged, drawn, and quartered", a brutal practice which authorities hoped would instill terror in other potential traitors-. (except Jeremy Tresham who fell sick and died while in prison).