Green-Eyed Monster: Over Kate. Despite being the one who ended the relationship whenever Kate gets close to another man he gets jealous. It becomes obvious even to him with Kate's first relationship with Jim and comes to ahead with 2Dads' rumour about Buffer and Kate.
Damsel out of Distress: Whenever she's in trouble, all the bad guys tend to forget that she's in the navy and leads a team of manly men who respect her. The amount of times she's in danger that she can't handle can be counted on one hand.
Love Martyr: Is left by Mike before the series begins without an explanation when she seems to have fallen half in love with him and is still bitter about it when she is posted to Hammersley. She suffers a huge Heroic BSOD when he seems to have been blown up in the series 4 final and has to hold it together for the crew. Mike is found to be alive, but ends up staying on Hammersley and when she applies for a promotion it is hinted that she is turned down because of their relationship. She ends the relationship for Mike's benefit. By this time Mike has fallen for her completely and is aware of the damage he is doing to her and tries to make up for it.
Ambiguous Disorder: He has a very black and white view of the world, and when asked if this was true he responded "I'm not racist." Then there's his believing Bomber fancied him after she gave him a peck on the cheek, and him not wanting to take credit for saving her life because she told him not to go near her.
Badass Bookworm: Might be the least physical man on the boat but don't cross him.
Camp Cook: When Bomber is away. Anything she has done wrong is instantly forgiven.
Cunning Linguist: Has picked up bits and pieces after years of working on patrol boats.
Jerk with a Heart of Gold: Isn't willing to go out of his way to help people when he easily can, is blunt to the point of rudeness and doesn't socialise easily. However he repeatly shows that he has a heart and after a while his lack of social interaction with the rest of the crew worries him enough that he begins to inprove.
Loners Are Freaks: Has a problem with this perception though he doesn't do much to discourage it.
Too Dumb to Live: Yeah Spider, go and change the biggest badass' tattoo choice to XO in a heart when he's asleep. You're lucky Buffer just put your head into the washing machine.
Rebecca 'Bomber' Brown (Kirsty Lee Allan)
Put on a Bus: Because of her romance with 2Dads, she's discharged from Hammersley.
The Squadette: Among the NCO during the second and third seasons.
Leo '2Dads' Kosov-Meyer (Nikolai Nikolaeff)
Establishing Character Moment: Is able to tell that a stall owner is selling stolen property just by looking at it and then uses dud money to buy their monkey to smuggle it back to Australia without going through customs on the Hammersley.