ABC, 10:01 p.m. ET
Jodi Lyn O’Keefe, who since her days playing Don Johnson’s daughter on Nash Bridges has played a number of increasingly risky roles – from a femme fatale on Prison Break to a psychotic witch on Two and a Half Men. Tonight she has a more mainstream guest role, as an entertainment reporter who’s attracted to Castle (Nathan Fillion). And, based on this photograph, the feeling’s mutual.