Original characters sometimes get a bad rap in fandom, because there are so many ways they can be misused.
Done right, however, OCs give us new perspectives, new insights, and make the worlds we adore much, much richer.
Just last night
shaenie and
fiercelydreamed gave us
Five people who the press won't care about when the Stargate Program goes public (and the reasons why the Atlantis expedition wouldn't have made it without them) House fandom has many "almost OCs": characters who are mentioned in canon but never shown, leaving fanfic writers to explore them. Wilson wives #1 and #3 (plus Bonnie) are part of the
Party Line by
nightdog_writes, as House calls them during his investigation in "Frozen," ep. 3-11.
perspi recs (and I concur):
2ndary_author's
Four People Who Got The Job (and One Who Didn't) as "a great take on the interview process for the Atlantis expedition. You'll recognize the interviewers and have a great time!!"
Recommend more great OC fics here!