|First Appearance||L&O: "Deceit"|
|Last Appearance||TBJ: "The Abominable Showman|
Peter Behrens is a high-priced defense attorney.
- Jerold Dixon (L&O: "Deceit")
- Dr. Christian Varick (L&O: "Double Blind")
- Molly Kilpatrick (L&O: "Divorce")
- The Garrison Family (L&O: "Merger")
- Cory and Melanie Kaufman (L&O: "Swept Away - A Very Special Episode")
- Byron Stark (L&O: "Swept Away - A Very Special Episode")
- Sherri & Roger Quinn (L&O: "Who Let the Dogs Out?")
- Julie Turner (CI: "Suite Sorrow")
- Kurt Lascher (TBJ: "The Abominable Showman")
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