TV Guide Online says that Karen Sisko will be on USA at 10pm/ET tonight. In fact, their critic, Matt Roush, reviewed and loved the episode. (No mention of Marley Shelton, though.)
Here's the synopsis for the episode:
Karen Sisco
Dog Day Sisco
60 mins.
Karen and her father (Carla Gugino, Robert Forster) becomes hostages in a bank robbery. FBI Agent Pepper: Gil Bellows. Tweety: Marley Shelton. Daffy: Steve Cell. Sylvester: Maurice Compte. Porky: Gregory Erff. Bugs: Ron Melendez. Capt. Mendes: Carlos Cervantes. Amos Andrews: Bill Duke.
Cast: Bill Duke, Carla Gugino, Robert Forster, Gil Bellows, Marley Shelton, Steve Cell, Maurice Compte, Gregory Erff, Ron Melendez, Carlos Cervantes