Awesome, Dear Boy: Several employees' reasons for working at Rooster Teeth Productions.
Matt Hullum turned down working on Smallville to work on Red vs. Blue, because he knew this trope would come into play. He also had similar reasons to Kathleen for doing so.
Joel Heyman and Kathleen Zuelch both worked in Hollywood a while ago and eventually decided to come back to Austin to work at Rooster Teeth full time, saying it is a lot more fun and less stressful.
Gavin Free worked on a lot of films and TV shows in his native UK. He cited it as fun, but incredibly stressful to the point he almost became an insomniac and started hallucinating. This trope is why he chose to come back to Rooster Teeth in 2012.
Executive Meddling: The "Twitch Debacle", in which an unspecified higher up forced Ray to relinquish control of his personal Twitch channel so Rooster Teeth could have one of their own instead of making their own. Ray nearly came close to quitting the company and later videos would have him moody, quiet, snarky and being something of a Jerk Ass for quite awhile. It seems, though, that things have calmed down for him.
One of Us: They love a lot of films, games and TV shows.
Michael Jones' actually a brony, hence the name of his GamerTag, "MLP Michael".
Ray Narvaez, Jr. was also big fan of My Little Pony: Friendship Is Magic (which explains his secondary GamerTag, "FluttershySucks"), but later admitted he stopped watching the show during one of his Twitch streams, as well as Sailor Moon.
He also dips into this when he emphasizes his role as the Meta Guy and references fan terms in the videos.
Chris Demarais and Kerry Shawcross are huge fans of The Lord of the Rings, and they went to New Zealand to travel the distance from the Shire to Mount Doom (using their real life film locations).
Ryan Haywood is a big fan of Dragon Ball Z.
Promoted Fanboys and Fangirls: Most of the company. This is either in the sense of being Halo fans, or fans of Rooster Teeth itself, to the point they get featured regularly on Halo Waypoint and even got voice cameos in Halo 3.
Barbara Dunkelman organised most of the events for Rooster Teeth and was finally rewarded by being hired full time.
Matt Bragg (a.k.a. "AxialMatt") went from a subscriber, to a three-time Game Master in AH's Let's Play Minecraft, to an official RT employee in 2014. His partner Jeremy Dooley was also hired alongside him.
Michael Jones started off as prominent Achievement Hunter community member Lt M Killa and his Rage Quit videos were liked enough to be on Rooster Teeth's channel itself. After they exploded in popularity, he was hired to be part of AH itself.
Reclusive Artist: Though he will turn up for short stints at events like RTX, Jason Saldaņa is rarely seen (or heard) outside of his role as Tucker in Red vs. Blue. He doesn't even appear in videos that are heavily focused on the original 6 of Rooster Teeth, such as anniversary videos or anthologies.
Dan Godwin rarely appears with Rooster Teeth at conventions or even in interviews, partly because of his day job. He's also embarrassed by the limelight he gets due to the series. Thus, this is also why Donut is frequently written out of the series.
What Could Have Been: Gavin very nearly didn't get to join Rooster Teeth. His permanent visa required three major things - to have been written about in an newspaper, to be on TV and to have won an award. Then, he did a video for The Slow Mo Guys about a six foot water balloon that made people notice him. Similarly, he was also supposed to be one of the test subjects for the first season of Immersion, but couldn't due to his visa problems. He did become a test subject for Season 2.
Barbara's experience at Rooster Teeth almost ended up being cut short when Burnie first saw her profile and didn't think she was a real person. Mercifully, this didn't happen.