Donno is Mojacko's companion in travelling. Donno may sometimes be of some assistance when they have problems in arranging the spaceship malfunction machine and cleaning the sensitive anti-germ computer. He was the intelligent of all characters. Donno. Retrieved from "http://mojackoanime.wikia.com/wiki/Donno?oldid=3955" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.