Jeff Caxide is an American bassist, best known for his time with post-metal band Isis, of which he was a founding member and present until its dissolution in 2010. He was also a founding member of Red Sparowes, but left after the release of their first full-length. He also contributed to side-project Spylacopa. Prior to his time in Isis, he was a touring member of the Bostonmetalcore band 454 Big Block. He also helped found Connecticut-based metalcore band Cable, for whom he played bass. His stay with the band as a musician was brief, but he did return in order to produce 1999's Gutter Queen.
After Isis' dissolution, Caxide went on to create Endless Midnight, an ambient solo album, under the moniker Crone. Mixed by former Isis bandmate Aaron Harris, iwas released in 2011 by Waylon Recordings.Brooklyn Vegan made a track, "The Silver Hammer", available for streaming on 28 June 2011 and Noisecreep premiered "What You Dream Of" on 18 July.