Form Filters are devices used by Nekross to take on a human form. It can be wore either around the neck or on the wrist. Lexi used a form filter twice to take on a human form and used the name "Lucy". Later her brother Varg also used on twice but unlike Lexi who took the same form twice, Varg used two different form: first as Stephanie Gaunt and later Rick Towers. A technician Nekross named Jathro used a form filter to take the form of an astrophysicist named Adam Wright.