Metal Gear has a reputation of being both incredibly serious and absolutely ridiculous at the same time. It's a character driven series, focusing a lot on topics like how war and the concept of war as a business affects people so it does put in the work to develop most of its cast. If it's character variety you're looking for, it certainly doesn't disappoint. From medics who are movie enthusiasts to actual vampires to robot dogs, it isn't lacking in the creativity department.