Dan O'Shannon
Dan O'Shannon is a writer who co-wrote the story for the  second season episode  with Rick Berman and Brannon Braga.

O'Shannon is better-known as a sitcom writer and producer, having been the showrunner on Frasier (starring Kelsey Grammer) at the time of writing "Carbon Creek", and previously being joint showrunner on the final season of prequel show Cheers (with Grammer, Kirstie Alley and Bebe Neuwirth). His other sitcom credits include episodes of Newhart, Suddenly Susan, Modern Family, and the 2015 revival of The Odd Couple.

Despite working principally in sitcoms, O'Shannon has also written episodes of drama shows, including Threshold (executive produced by Braga) and Jericho.

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Writers