Non-Action Guy: For the most part, Greg is either in the command truck or negotiating with subjects , and focuses on the commanding the team and the larger picture. However, when push comes to shove, Greg can hold his own, even though he isn't in Ed or Sam's league.
Cold Sniper: Compared to Sam, Ed is the stoic and colder officer, and he's portrayed at this... before spending much of Season One stoically dealing with a Heroic BSOD.
Heroic BSOD: In the pilot episode, he has one when he thought he had killed the hostage taker's son who had ran into the line of fire just as Ed pulled the trigger. The effects of this remain a long time.
In "Broken Peace", when he was forced to shoot and kill an 18-year-old girl trying to kill her abusive father (who had taken her mother hostage).
Break the Cutie: Admittedly all members of Team One go through their fair share of breakage over the course of the series, but Spike starts out the "cutest" (goofy sense of humor, always smiling and optimistic) and then gets dumped on in the middle of the series. In the course of a few dozen episodes, his best friend Lew dies (which he feels responsible for), he gets grabbed and used as a hostage in "Behind the Blue Line," causing Ed to have to shoot the guy, his mentor turns out to be a crooked cop, and then dies more or less in Spike's arms, we find out his father is angry with Spike because he thinks the SRU is too dangerous, and he also happens to be dying, said father then dies (through he does seem to reconcile with Spike first), and Spike gets taken hostage again this time with Sam's sister Natalie... during his captivity Spike has to orchestrate a robbery at the evidence locker, and briefly believes he's gotten his team members killed. Guy needs a hug.
Embarrassing First Name: Spike doesn't mention his real first name if he can help it, although Parker calls him by it when he gets cocky.
Heroic BSOD: Happens when Lewis dies after stepping on a landmine. He still retains extreme guilt over it.
Not Afraid to Die: Somewhere between this and Death Seeker... Spike's not reckless, per se, but he seems to place a low value for his own life. Seen first in "One Wrong Move" when he's willing to probably die in an attempt to save Lew; Lew realizes this and steps off the landmine so Spike won't have to try his plan, which has a slim chance of working. Seen later in "Shockwave" and "Blue on Blue." Spike will do anything to save his loved ones/ do his job, even if it involves a high probability of death.
Stepford Smiler: Sam and Natalie point this out to him in "Blue on Blue," though he already seems well aware that he uses humor as a defense mechanism.
Kevin "Wordy" Wordsworth
Played by Michael Cram
Commuting on a Bus: After he is diagnosed with Parkinson's Syndrome and is transferred out of the SRU in the fourth season, he still shows up regularly as a member of the "Guns and Gangs" department.
Gets one when she is forced to kill a customs official while protecting a serial killer.
She has another one when a crime family who she had taken down years ago started hunting down loved ones of her and her old squad and her new husband was shot by her ex-colleague who was blackmailed to do it so he could protect her. She was very close to gunning down her ex-colleague before Team One talks her down.
Hero of Another Story: After her stint substituting for Jules, she transfers to and eventually leads SRU Team Three (odd parallel to the original Trope Namer, who was the leader of SG-3 when the show was about SG-1).
Killed Off for Real: In the first part of the series finale. Not only is Donna killed by a bomb (M112 demolition charge in a 'suicide vest' worn by Anson Holt), it was also a 'dirty' bomb. Even if she had somehow survived the initial blast, the radioactive contamination (if untreated) would also have been fatal.
New Meat: Donna is recruited to replace Jules after a series of trials, some of which was shown in Season 2 episode 'Business As Usual'.
Screw This, I'm Outta Here!: After the events of "Broken Peace", he decided to leave the team because he felt that justice would have been better served if the girl was allowed to kill her abusive father.
Supporting Cast and Recurring Characters
Played by Tattiawna Jones
Ship Tease: With Spike, prominently during the fifth season.