Here are a couple of ideas for crewmen of the spaceship which crash lands on Earth in my still unnamed “space comic”. The starfishy fellow strikes me as an engineer- all those hands that can work on multiple problems at once and an ability to orient itself in all manner of ways. Of course the ship would have to have bars hanging from the ceiling of the crew areas so it could get around, but that’s just what you have to do if you have one of these multi-dexterous creatures onboard. The caterpillar thingy with three arms and many eyes looks like a bit of a bruiser, possibly they’re security. That is supposed to be a gun- built for something with two opposing thumbs and two fingers- within easy reach of its left hand.
And this is meant to be the spaceship. It’s meant to be similar to those big container ships which cruise our oceans. There’s a pod at the front which houses the crew, controls and any special cargo (and which has a hold where our human characters will take up residence), lots of containers- each carrying something different- and big engines at the back. I’m going to use a cop-out to get around the questions of the long timescales involved in interstellar travel. There are a series of “ports” into a parallel dimension with different physical characteristics and ships simply cruise between them. If, for any reason, a ship should drop out of this dimension they’re doomed to travel in real space, potentially for millennia, at sub-light speeds to get to the nearest port. Or they can wait and hope someone will come along and build a temporary- or establish a new- port where they are.
Of course, there are territorial disputes in the High Spaces, and pirates roam them. They attack, plunder and commandeer craft and occasionally one is “sunk” back into normal space. Which is how the story begins.