Roel played with Inhume former guitarist Richard in a band called Mortem from 1986 to 1988 before he started Maligant with Ron van Pol. (Ron did vocals on 2 Asphyx albums as well as bass on at least one of them but probably on both)
Inhume was initially a 9-piece band. The idea came from drummer Roel who wanted to start something totally crazy after members quit with Malignant.
Loek was the session bass player on Martyrium's "Ideology of death" CD. Loek also played with dutch death metallers "Mangled" alongside Harold Inhume's former guitar player (and Ewrin Hermsen who did several Inhume recordings)
Ben, Loek and Joost used to be in a technical death metal band called Drowning in Tears.
Ben used to be a drummer/vocalist in several bands between 1982 and 1988 (a.o. Penectomy, Eviscerated) before becoming the only* guitarist and backing vocalist in Malignant (1988-1994) (*replacing both Guitar Players Frenk and Hans)
Besides Inhume, Joost has been the vocalist for Sinister and also takes the same role for goregrinders Cliteater.
In 2008-2009 Roel Sanders rejoined God Dethroned, where he was from 1997 to 1999 with the difference that he also stuck with Inhume this second time. Roel also plays in Snaggletoöth (a Motörhead tribute band), and he and Ben have been playing in a band together since the late 80s (Malignant). Roel has filled in on drums for among others Occult (now Legion Of The Damned) and Bile (now Skullhog). Roel is the drummer on the Asphyx - Asphyx album under the fake name of Sander van Hoof. That Ben also joined Asphyx (as well as our old Malignant vocalist Ron van Pol) for a couple of months just before Eric Daniels decided to call it quits in 1992 or so.
Both former guitarists of Inhume (Richard and Harold) are now with Legion Of the Damned (Richard on Guitar and Harold on Bass)