#i guess since there's literally nothing in canon that says angels can't grow facial hair or that they don't

[mittensmorgul]

do we know why the boys were not allowed to have facial hair on the show? i feel like it was more in character than to assume sam and dean had to time to just always be clean shaven in the middle of apocalypses, being demons or possessed, fighting gods ect. on the flip side, im still confused as to how cas grew facial hair in purgatory when i didnt think that was something that happened to angel vessels?

Hi there! There's actually quite a bit going on in this question (I think this is my way of saying sorry it's taken me a few days to get to it :'D)

I'll start by saying I don't think it was a matter of "not allowed" to have facial hair, but it's actually more complicated than that. Not to mention Dean especially was almost never what I'd call "clean shaven" outside of when they were beginning a hunt and posing as FBI.

There's a video I think on the s1 dvd's called something like "a day in the life of Jared and Jensen". Wait... I found it on the youtube...

It's only about 10 minutes long, and if you haven't seen it, it's worth watching all of it. It was shot during the filming of 1.20 Dead Man's Blood, so they hadn't even been at this a full year yet. About 2 1/2 minutes in, they go through hair and makeup, and talk about shaving.

Back in s1, Sam had to be more clean shaven to look younger, and Dean had to have a bit of scruff just to look a bit older. So at first it was to visually make their ages more obvious. But it's also about continuity on camera. Remember, each episode of supernatural was filmed over eight weekdays (with a couple days for weekends in the middle). Episodes are NOT filmed in scene order. It would make it almost impossible to show normal, chronological beard growth over the span of two weeks of filming, you know?

If they film scene 38 first, then scene 12, then scene 19, then scene 2 over the course of four days, their facial hair has to remain believably consistent, not grow and shrink :'D So having a designated easily duplicatable facial hair style (and hair cut, because head hair can grow noticeably in two weeks, too, especially when it's as short as Jensen's on the sides/back) makes visual continuity actually possible. Especially when they're filming entire EPISODES out of airing order.

Think about Jensen's beard in the AU bunker battle scene in the beginning of 15.04. That was the first episode filmed of s15, and those were the first SHOTS filmed of s15 before Jensen shaved off his hiatus beard for the rest of the season. Those scenes were probably filmed in a single day, two at most, before he had to resume "standard Dean." Also think about Demon Dean's slightly longer hair that went back to normal, or Sam's beard from the first three episodes of s14 before he shaved in 14.04. Those times the longer hair/facial hair was used to show a lack of self-care for various reasons.

I think Cas's Purgatory beard was used to show the same. He was doing "penance" in his own mind, but I do think it was also the seeds of his entire depression arc that would run right through 15.18 and then never get an actual resolution (sorry, I had to at least grumble about that a little bit...). I remember Jensen saying when he asked why Dean was clean-shaven in Purgatory and Cas wasn't, he was told by someone that "Dean has knives," and would actually continue shaving for some reason, while Cas wouldn't even bother using his grace/powers to maintain his appearance there.

I don't believe the show has ever made any sort of statement about angel vessels NOT growing hair/facial hair. Plus by this point in the series, we really do have to consider that Cas's body, not as much his vessel anymore. Jimmy was long gone, and the last at least two times Cas had been resurrected, that body was also remade for him. We're at least two degrees of remove from that being a normal vessel, so even if angel vessels aren't "supposed to" grow hair or change their appearance, Cas would have an exception asterisk attached. :'D

The thing is, we HAVE seen other angels change the appearance of their vessels. I mean... Lucifer, for one, especially in s13. He grew scruff, looked messy, etc. And it was explained to be a result of having been imprisoned and his grace seriously depleted to the point he couldn't even perform small magical tasks for himself.

So why did Cas grow scruff in Purgatory? Because television is a visual storytelling medium. If you had a friend in real life who usually looked like Cas normally does, and then saw him after months and saw the guy Dean found in Purgatory, what would your immediate thoughts be about how that friend had been doing lately? Did similar thoughts about how Cas's last few months in Purgatory alone, running from Leviathans, staying alive primarily to keep the Leviathans focused on HIM instead of on Dean?

I think the phrase "run ragged" applies to Cas's Purgatory look. Sometimes facial scruff combined with smudged on dirt is the fastest visual shorthand for "yikes this guy has had it rough lately." Hence his "get clean" scene in 8.07 restoring him entirely to "normal," including clean-shaven and a decent haircut somehow. I think he'd been entirely able to have given himself that look in Purgatory, but he just never bothered to. For whatever reason, Dean did bother. And that was part of the visual narrative telling us that Dean still cared, and that Cas (outside of his mission of keeping the leviathan away from Dean) didn't.

Like, even when Cas was human in early s9, when he was on the run and homeless, even when he was given opportunity to shave his scruff (at the beginning of the episode while brushing his teeth, and at the end after showering at the bunker and before being kicked out) he still retained the scruff. The next time we saw him in 9.06, when he was settling into his "new human life" as a sales associate, even though we understand he's still technically homeless, he's actually maintaining his appearance, demonstrated by his care for himself and the fact he bothered to shave. For him, it was a visual signifier of his growing to accept himself.

To go way back up to that video above, in the makeup trailer are dozens of photos of different looks for each of them. Yes, some are purely silly, but even as shown in 6.15 The French Mistake (the "I'm a painted whore!" scene) are a few similar continuity photos. Every day of filming, every change to makeup and hair (including FX makeup showing wounds, bruises, etc.) has to be documented for the sake of continuity. Or you'd have an episode with alternating scenes of them having longer/shorter/longer facial hair over the course of what's supposed to be a single day on screen. The easiest way to maintain that continuity is character consistency, only having a drastically different look occasionally, for a specific reason.

So why couldn't they have chosen to go with a beard for an entire season? It's just as easy to maintain beard consistency day to day on set as it is to just have them shave to scruff, right? Crowley did that... he was clean-shaven the first few seasons he was on the show, and then grew the beard, so why not Sam and Dean?

As I said above, the visual language of the show actually means something. These aren't real people who might casually decide to grow facial hair for fashion reasons. They're fictional characters being used to tell a specific story. Their appearance and their clothing choices are visual shorthand to give us information about their current mental state, their internal priorities, etc. It's all part of the story, and in this story, Sam and Dean generally care enough to maintain their chosen physical appearance. They only seem to grow beards when they're either being run ragged or otherwise lack the ability to care for themselves, whether by choice or by circumstance.

I think it's less "they were not allowed to grow beards" and more "this would not be in character in the visual language of the show."