Animation Mentor, an online school set Sem Assink, who wrote, directed and designed the film.
Niels de Groen, who assisted Sem during the nine month-project. Together they modeled, rigged and animated the characters; and afterwards they composited the characters in the 2D backgrounds.
Steven Geldof produced Hold the Line.
Dusan Petkovic edited the film, first at storyboard level, but as the animations progressed, Dusan refined his edit.
Ruth Bader handled the decoupage during storyboard creation.
Jeroen Damen recorded and created all the effects and sound creation together with Donovan Kemper.The production was made possible with the help of people outside the film academy:
Juus Piek, a talented voice-actor (and sound-technician), lent his voice to all four actors.
Bart Redingius coached the students during the production.
Alan van Ramshorst and Lennart Kleinen created an inspiring alternative soundtrack.
Jeroen Hooghoudt and Marijn Eken assisted with the visual effects
