Three actors join TV series

'Knight Rider,' 'Sarah Connor,' 'Numbers' add cast

Paul Campbell has joined NBC's new action series "Knight Rider," Leven Rambin is in talks to come on board Fox's "Terminator: The Sarah Connor Chronicles" and Sophina Brown has been added to CBS' "Numbers."

On "Knight Rider," a sequel to the 1980s NBC series, Campbell ("Battlestar Galactica") will play the head research tech at Knight Industries. He is repped by WMA and ROAR.

On "Terminator," Rambin ("All My Children") will play the teenage Becky, a potential love interest for John Connor (Thomas Dekker).

On "Numbers," Brown ("Shark") will play Nikki Donat, an ex-LAPD officer and full-blown adrenaline junkie who joins the Los Angeles FBI team as a junior agent. Brown, whose role is recurring with the potential of becoming regular, is expected to fill the void left by the departure of Diane Farr.