Designing Aliens

Over the years, I've designed a lot of aliens.  Some of them were realistic, some were cartoony, some were humanoid, some were animalistic.  I always try to design to the tone of the show.  For example, Ancient Aliens often calls for frightening, sinister aliens, whereas Through the Wormhole takes a much more clinical and/or fun approach to the subject.  I thought this video essay did a great job breaking down the specific needs of creature design.