“The Office” actor Rainn Wilson is heading to CBS. Wilson has signed on to star in a drama pilot based on the Swedish book series “Backstrom” by author Leif G.W. Persson, about an overweight and ornery detective. Actors Dennis Haysbert and Kristoffer Polaha have also signed on to co-star.

Jim Baral has been named senior vice president of integrated sales for the West Coast at Liberman Broadcasting, which owns a number of Spanish-language TV and radio stations. Baral joins from Univision, where he was network vice president of sales and marketing for the West Coast.

Fox has picked up the rights to “Rihanna 777,” a concert documentary featuring the singer and premiering on the network on May 6. The project documents a concert tour over seven days in seven countries.

Facebook has named Mike Schroepfer chief technology officer, replacing the departed Bret Taylor. Schroepfer has been with the social network since 2008, most recently as vice president of engineering.

Female-focused web site SheKnows has named Samantha Skey chief revenue officer, working out of the company’s New York office. Skey was most recently chief revenue officer at Recyclebank.

Twitter creator Jack Dorsey made an appearance on CBS’s “60 Minutes” over the weekend, and among the tidbits uncovered by reporter Lara Logan is that Dorsey would some day like to run for mayor of New York. Dorsey is also founder of the digital payment service Square.

The Advertising Research Foundation has named Gayle Fuguitt president and chief executive officer, succeeding Bob Barocci beginning on April 15. Fuguitt, a former vice president of global consumer insights at General Mills, was on the ARF’s board from 2005 to 2012.

People magazine has brought in Caitlin Keating as a news assistant, where she will write about a variety of topics. Keating had been a reporter at Fortune, and she also previously freelanced at The New York Times, among other publications.

Going from having her own talk show to having her own cable network has not diminished the influence of Oprah Winfrey. Or at least not according to Forbes, which has once again named Winfrey America’s most influential celebrity. Steven Spielberg, Martin Scorsese, Ron Howard and George Lucas rounded out the top five behind Oprah, who led the list for the second year in a row.

TNT has added Taye Diggs and Kathleen Robertson to the cast of its drama pilot “Murder in the First,” from writer and producer Steven Bochco. Diggs and Robertson will play homicide detectives.

Tim Roth has joined the cast of Discovery Channel’s upcoming miniseries “Klondike,” based on a book by Charlotte Gray. Roth’s most recent TV role was in the drama “Lie to Me.”

Actor Bruno Ganz has joined Showtime’s drama pilot “The Vatican,” where he will play the fictional Pope Sixtus VI. Nearly a decade ago Ganz played Hitler in the movie “Downfall.”