Other the the main cast member they will be many crew strand onboard the Destiny.
The spoiler said SGU crew will useSpoiler:
What about "Sex"?
People has needs, SGA never really directly deal with the issue, they have contact with Earth at the end of S1.Every member of the SGA expediation knew what they get into when they sign up ,And The crew have dated other member of the expediation, they are all PG rated .
But SGU is about a brunch people who never expected to be in that kind of situation.Strand on board an alien ship , constantly moving and getting further from home.And we are not sure when or if the crew can re-establish physical contact with Earth .
Soon or later the crew will date each other,or they may date alien once a while .
the character Captain TAMARA JON With only paramedic-level training, she ends up being the most medically inclined person on the ship, she will have to take care the medical health needs of the crew.
What about supplies of contraception ?birth control pills or Condom ?
Unless the ship has a matter replicator or tons of Ancient contraception supplies.We may have to deal with unplan pregnancies and babies born aboard the ship.
In other Scifi TV show like BSG, or St voy , they deal with issue like crews dating each other , pregancies or even "abortion" .