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The brothers leaving the show disaffected many fans and Tracy Tormé was asked what could be done to win them back.

This resulted in an unsuccessful effort to bring back some popular previously recurring characters.

The producers negotiated with John Novak ( Ross J. Kelly, the ambulance-chasing lawyer ), Alex Bruhanski ( Pavel Kurlienko, the taxi driver ) and Lester Barrie ( Elston Diggs the waiter at the ChandlerHotel ) for their return in season five.

Zoe McLellan ( Logan St. Clair ) was scheduled to appear again and Jason Gaffney ( Conrad Bennish, Jr ) from season one was confirmed for four episodes including the season finale.

However, none of these guest stars appeared.

Why Bennish didn't appear in the fifth season is one of the biggest behind-the-scenes mysteries of the show.