Question: The burial vault which Matt and Karen hide in has the name "Edmond Cleary Cass" on the front of it, shown pretty. Does that name have any significance to the show or Marvel?
Answer: I did a little research too. Interestingly enough I found a Friar named "Edmund Cass" who as far as I could tell is still alive and well. I wonder if that was just a coincidence.
Question: Should I watch the entirety of Breaking Bad before I watch Better Call Saul?
Answer: It is my opinion that you should absolutely watch Breaking Bad first. If you did not know, Better Call Saul takes place before the events of Breaking Bad. At the time I am posting this, BCS is mid-way through season 5, with season 6 on the way perhaps in a year. So if you binge Better Call Saul now, you would not be able to "flow" right into Breaking Bad. To me, it's better to watch in the order that they came out. Breaking Bad was a phenomenal show, and now watching Better Call Saul, it is fun to watch the events unfold and start to lead up to what we saw in BB. Enjoy.
Answer: Now that it's ended, this question can be fully answered. Better Call Saul includes events after the conclusion of Breaking Bad, as well as references to and descriptions of major events from the latter. Not only would Breaking Bad be spoiled for you by watching Better Call Saul first, but there's a lot that wouldn't be understood.
Chosen answer: So far the show has been about Saul's struggles as a lawyer long before the Breaking Bad timeline (Spoiler Alert: It starts out for the most part at a time when he didn't even go by the name Saul).
Question: Lucifer is shot at by Jimmy Barnes 6 times but suffers no harm while Chloe is in the same room, but later episodes show he is not immortal when she is near. What's the deal?
Answer: As Cain theorises in a later episode, it's Chloe's love, not presence. This early on, Chloe had no strong feelings for Lucifer, so had no effect on his immortality. In fact even more recently he's back to being invulnerable around her after speculation that he chose to let himself be vulnerable. So while there's a degree of flexibility / retconning going on, it's all explained in-show.
Question: Does Kat ever wise up again to Kara's secret? That and why did she (Flockhart) leave the show only to come back?
Answer: Yes, s02e22. As Kara leaves her office, she said "go get them, Supergirl" to herself. After season 1, the show switched from a CBS production to a CW production and filming moved from L.A. to Vancouver. Flockhart isn't really a fan of traveling to shoot, and didn't want to be away from her family for so long.
Question: Does Mark McKinney wear a fatsuit for this series or did he gain weight in real life? I ask because he was on the skinny side when he was on Kids In The Hall and SNL as well as the many films he's been in. So which is the case?
Chosen answer: He's just gained weight. It looks like he slowly started gaining more weight around 2006 or so. In "Kids in the Hall: Death Comes to Town" (2010) he's noticeably heavier than his younger days (he was on SNL 21 years ago). By the time he was in "Man Seeking Woman" he looks very similar to how he looks in "Superstore."
Question: Question about the franchise in general: would crowd funding be a viable method to finance new installments?
Answer: Series creator Sam Raimi has said that there are three new ideas to continue the franchise, but there's no other information available at this time. Crowd funding could possibly fund another film, sure. But it's such a well-known franchise that it likely wouldn't be necessary. All we really know for sure is that the series "Ash VS Evil Dead" can't return, as it is under partial ownership by Starz, and producer Robert Tapert stated in a Q&A that they weren't interested in selling off the rights to the series. So if more "Evil Dead" is made, it likely wouldn't be a direct continuation of the series.
Question: How was the mother cell discovered? Was it man made or natural?
Answer: In the episode "Blame It on Leo", Leo Butler, who use to work for Reiden, tells the group about the "mother cell." He explains it's Reiden's molecule vector. So it's something Reiden created. In real life science, vector cells are used to introduce DNA sequences from one organism to another. There are a variety of ways for this to occur, however, in the show not much explanation is given about how Reiden's mother cell works (and tends to bend how it works to the will of the plot).
Chosen answer: After some research, I can say that no, Cass is not a character of Marvel, nor is he present in the Netflix show. As far as I can tell, it's either a real person, or a random name chosen for the coffin, most likely the former. In another season of Daredevil, the show utilized a real cemetery displaying real names in the tombstones.