The show is taped as a "mocumentary." It follows the lives of approximatly 14 individuals who work at a paper company called Dunder Mifflin. Most of their lives are captured within the office. I'll give you a rundown of some of the halarious characters of The Office.
[Regional Manager of the Scranton Branch]
"...friend first, a boss second, and probably an entertainer third"
Often, he says things that are inappropriate, offensive, or unwittingly mean in the hopes of getting a laugh. He lacks maturity and self-awareness, has few friends, and is quite lonely, made worse because his efforts to make friends with people usually backfire. Michael will resort to any means possible to make himself the center of attention, and often takes credit for the successes of others. His subordinates, with the exception of Dwight Schrute, think of him as inept, and several of them remark that they get their work done when Michael is distracted.
[Senior Sales Representative]
"Because right now, this is a job. If I advance any higher, this would be my career. And if this were my career, I'd have to throw myself in front of a train."
He spends much of his time conspiring with fellow salesperson, and wife, Pam Halpert, to engineer pranks on his overbearing deskmate Dwight Schrute. Due to his dry, deadpan manner, Jim is something of a straight man for the show and acts as the comic foil for Michael and Dwight.
Michael: Pam, please clear my phone lines.
Pam: Certainly. Beep-boop bee-boop-boop beep beep beep boop. Okay, clear.
Pam spends much of the series as the friendly but often frustrated receptionist at the Scranton branch of the fictitious paper-distributor Dunder Mifflin. As the series progresses, she becomes a sales rep for the branch. She can seem shy or hesitant to speak her mind, but enjoys chatting with her best friend, and later husband, Jim Halpert. She often helps Jim play pranks on his deskmate Dwight Schrute. Her boss Michael Scott often asks her to do strange office tasks, and mocks her about being a receptionist.
[Assistant to the Regional Manager/Sales Representative]
"I have been Michael’s number two guy for about 5 years. And we make a great team. We’re like one of those classic famous teams. He’s like Mozart and I’m like...Mozart's friend. No. I’m like Butch Cassidy and Michael is like...Mozart. You try and hurt Mozart? You’re gonna get a bullet in your head courtesy of Butch Cassidy."
Dwight is 6 feet 2 inches with little sense of humor, a hunger for authority, and a gullible nature that often makes him the target of pranks, primarily at the hands of Jim. Despite his naivety, he is knowledgeable on a wide range of topics including bears, beets, and Battlestar Galactica. Despite his personal dislike of Jim Halpert, the two have been shown to be a very effective sales team. Dwight's ability as a salesman, though, has rarely commanded the respect of his peers or led to higher levels of professional success.
"Yeah, I'm not a temp anymore. I got Jim's old job. Which means at my ten year high school reunion, it will not say "Ryan Howard is a temp". It will say "Ryan Howard is a junior sales associate and a midrange paper supply firm". [pause] That'll show 'em."
In early episodes, he is shown to be uncomfortable with his working relationship with his boss, Michael Scott. Michael often forces Ryan to carry out menial tasks for him while at the same time, becoming obsessed with Ryan's personal life as well as gaining Ryan's friendship, to the point of buying him an iPod for Christmas.
Most information taken from Wikipedia.
Michael: Wikipedia is the best thing ever. Anyone in the world can write anything they want about any subject, so you know you are getting the best possible information.