Change is in the air at two midseason skeins: Thesp Rob Estes has joined the cast of ABC’s upcoming “The Evidence,” while the WB has trimmed its order on “The Bedford Diaries.”

Estes stars opposite Orlando Jones on “Evidence,” replacing original cast member Nicky Katt, who is leaving the project. Estes will play Inspector Sean Cole, a San Francisco detective who struggles to regain his life after the murder of his wife.

Procedural drama comes from Warner Bros. TV and John Wells Prods.; Sam Baum and Dustin Thomason exec produce.

Cast also includes Martin Landau and Jodi Lyn O’Keefe.

Estes most recently starred in the ABC pilot “Soccer Moms”; he also appeared in the telepic “Counterstrike” and guested on “Gilmore Girls.” He’s best known for his roles on “Melrose Place” and “Silk Stalkings.”

As for “Bedford,” WB is now committed to eight segs of the midseason drama — the pilot plus seven additional episodes. Frog had originally ordered 13.

“Bedford” comes from Warner Bros. TV, HBO Independent Prods. and the Levinson-Fontana Co. Jim Finnerty, Tom Fontana, Barry Levinson and Julie Martin exec produce the show, about sexy college students in New York.