2010, ) Frankie Stein (with Marco Cinello, graphic novel, 48 pages, 2010, ) Madman 20th Anniversary Monster: "Eternity!!!" (with Teddy Kristiansen, anthology graphic novel, 264 pages, 2011, ) Liberty Annual '12: "free" (with Marco Cinello, anthology, 2012) collected in CBLDF Presents: Liberty (hc, 216 pages, 2014, ; tpb, 2016, ) Batula (with Marco Cinello, graphic novel, 48 pages, 2012, ) The Red Diary/Re[a]d Diary (with Teddy Kristiansen, graphic novel, 144 pages, 2012, ) The Red Diary part of the book, written and drawn by Kristiansen, was originally published in French by Soleil as Le Carnet Rouge (72 pages, 2007, ) The Re[a]d Diary part is a "remix" of the original work with proper names and places kept intact — adapted and translated by Seagle. Imperial #1–4 (with Mark Dos Santos, 2014) collected as Imperial (tpb, 144 pages, 2015, ) Camp Midnight (with Jason Adam Katzenstein): Camp Midnight: The Bus (mini-comic self-published as Man of Action, 2014) Camp Midnight (series of graphic novels): Volume 1 (248 pages, 2016, ) Volume 2 (248 pages, 2019, ) Get Naked (collection of illustrated essays, 280 pages, 2018, ) "Backward" (illustrated by Mads Ellegård Skovbakke) "Colorado Springs" (illustrated by Fred Tornager) "Sydney" (illustrated by Thorbjørn Petersen) "Tokyo" (illustrated by Sim Mau) "Alicante" (illustrated by Rebekka Davidsen Hestbæk) "Barcelona" (illustrated by Emei Olivia Burell) "Seoul" (illustrated by Andrada-Aurora Hansen) "Hollywood" (illustrated by Erlend Hjortland Sandøy) "Burbank" (illustrated by Ingvild Marie Methi) "San Fernando Valley" (illustrated by Thomas Vium) "Long Beach" (illustrated by Christoffer Hammer) "Helsinki" (illustrated by Aske Schmidt Rose) "Tallinn" (illustrated by Silja Lin) "Baltic Sea" (illustrated by Angelica Inigo Jørgensen) "Berlin" (illustrated by Tina Burholt) "Bern" (illustrated by Hope Hjort) "Karlovy Vary" (illustrated by Bob Lundgreen Kristiansen) "Copenhagen" (illustrated by Cecilie "Q" Maintz Thorsen) "Forward" (illustrated by Patricia Amalie Eckerle) Other publishers Dark Horse: Grendel Tales: The Devil in Our Midst #1–5 (with Paul Grist, 1994) collected as Grendel Tales: The Devil in Our Midst (tpb, 117 pages, 1998, ) Dark Horse Presents (anthology): "My Vagabond Days" (with Stefano Gaudiano, in #113, Annual '98 and 137–138, 1996–1998) "Predator: Bump in the Night" (with Duncan Rouleau, in #124, 1997) collected in Predator Omnibus Volume 3 (tpb, 344 pages, 2008, ) Solstice #1–2 (with Justin Norman, Watermark Press, 1995) collected as Solstice (tpb, 120 pages, Active Images, 2005, ; hc, Image, 2016, ) Oni Double Feature #10–11: "Drive-By" (with Jan Solheim, anthology, Oni Press, 1998–1999) Heroes