Age: 43
One of three graduates of California State University, Northridge currently on CNBC's on-air staff. The other two are Sue Herera and Ron Insana.
Griffeth on whether CNBC should cheerlead the market: "We should not be rooting for the market. Up isn't necessarily good, nor is down necessarily bad."
Most unconventional Power Lunch guest: Rolling Stones keyboardist Chuck Leavell, playing holiday music.
Age: 54
Background: Earned JD from the University of Pennsylvania, after years in local radio and TV as a reporter and news director.
Wake-up time: 4:15 a.m., to be ready for a 7 a.m. show.
On being the morning curmudgeon: "I'm not worried about the positive story. The CEO will have no trouble getting that out. My job is to find the negative story. My job is to figure out if you're lying."
Age: 42
Married to a doctor.
Outside of work: Gardening.
Her morning: "My day begins at 6 a.m. when a regular source calls me from Hong Kong."
On learning to cover the commodities markets in the early 1980s: "I'd call up and say, 'This is Sue McMahon. How's live cattle doing?' I'd hear click. I'd call back and say, 'I think we got disconnected.' One day, a guy said, "It's evident that you're not gong to go away. Here's how to ask questions.'"
Age: 39
Married, with a daughter
Reason for shedding his toupee last summer: Found wearing a hairpiece "somewhat incongruous with being truthful."
Outside of work: Playing drums, working on a book called The Message of the Markets.
Age: 44
Married to Penelope Scott Kernen, associate producer of Squawk Box.
On how he went from molecular biology to the stock market: "My dad gave me $5,000 in 1979, and a guy turned me on to options trading. I was bitten by the bug. I got a C my last semester at MIT, because I was too busy playing the stock market."
On the talent he encountered at MIT: "I was on the fifth floor of a building where David Baltimore and Phillip Sharp (two Nobelists in medicine) were working. These guys were head and shoulders above what I'd ever be able to do."
Life as a new father: "I've changed two diapers -- exactly two."
Bruno Cohen is Senior CNBC Executive overseeing content for CNBC's daytime business programming. Until recently, he had a full beard, which, combined with his thoughtful style, made Cohen seem a bit like a rabbi in charge of a rock-music network. Here are his five principles for running CNBC, which the former news director of New York City's WNBC calls "the best gig I've ever had."
The people at CNBC talk about stocks all day, both on the air and off, but they aren't supposed to trade all day. The network has imposed rules restricting its staff's participation in the stock market, both to comply with federal insider-trading laws and to avoid CNBC employees' using the network and their positions for personal gain.
CNBC has a two-tier ethics policy: one set of rules for all employees and a more restrictive set for newsroom staff. According to Howard Homonoff, general counsel to NBC's cable networks (CNBC and MSNBC), all new CNBC employees must sign that policy and must give CNBC the right to audit their brokerage accounts if the network suspects any violations.
Here, then, are the rules as laid out by Homonoff.