'Bones' Star Crosses Over to Spinoff, 'Nikita' Adds a Series Regular & More TV Casting News

'Bones' star John Francis Daley will guest star on the show's spinoff, 'The Finder.'

According to TVLine, the 'Freaks and Geeks' veteran will play his 'Bones' character, Sweets, when the show debuts midseason.

"Who is more qualified to examine [Geoff Stults'] brain damaged paranoid finder than Sweets?" Stephen Nathan, 'Bones' executive producer, told TVLine.

Daley is expected to be one of many 'Bones' actors to guest star on the new series. David Boreanaz has signed on to direct an episode of the new show.

In other casting news ...

Sutton Foster has joined the cast of Amy Sherman Palladino's new series. Foster will star in 'Bunheads' as a dancer who goes to work at her new mother-in-law's studio. [ABC Family]

'Medium' actress Sofia Vassilieva will guest star on 'Law & Order: SVU.' Vassilieva will play Sarah Reese, a young pianist who is raped. [TVLine]

John Scurti is heading to 'House.' The 'Rescue Me' star will play a patient in a November episode. [TVLine]

Russell Brand will be the first guest on Rosie O'Donnell's new show. 'The Rosie Show' premieres Oct. 10. [THR]

Dean Cain, Eric Roberts and Kristanna Loken will guest star on 'Burn Notice.' The trio will appear in the show's season finale. [TVLine]

Michael Weston has booked a role on 'CSI: NY.' Weston will play Frank, Jo's former FBI crime lab partner from Washington. [TV Guide]

'Nikita' guest star Dillon Casey has been promoted. Casey will now be a regular on The CW series. [Deadline]