If I made a comic, I would enjoy people discussing in detail about the characters &/or comic. It shows that there is a good story line & shows good character development.
Based on these, I think McLean is his family/last name : www.gocomics.com/redandrover/2011/09/07 , www.gocomics.com/redandrover/2013/09/07 , www.gocomics.com/redandrover/2015/06/01 , www.gocomics.com/redandrover/2010/06/21 to 26.
I would like to add : Even though the galaxies will collide, there will be very few if any stellar collisions. This is because there is such great distance between stars (except for the ones in star clusters) they will miss one another. The ones which pass close enough to each other will have the gravity among them change their course or may cause them to become a star system with one orbiting the other or orbiting a common point.
That is okay, as long as one is careful. (Yet one does not have to be as “careful” as most people think one has to be to do such, especially if the person in question regularly does activities without shoes.)
https://borntolivebarefoot.org/barefooting-on-hot-surfaces-can-sometimes-be-a-challenge