Kevin Kilner, as William Boone, was the original series lead, replaced by Robert Leeshock, as Liam Kinkaid, in the second season, succeeded by Jayne Heitmeyer, as Renee Palmer (who debuted in the third season), in the fifth season. Others who appeared as series regulars throughout the five-year run from 1997 to 2002 included Lisa Howard (Lili Marquette), Richard Chevolleau (Augur), Leni Parker (Da'an), David Hemblen (Jonathan Doors), Anita La Selva (Zo'or), Melinda Deines (Street), Guylaine St-Onge (Juda), and Alan Van Sprang (Howlyn). This constantly shifting cast line-up was a source of frustration for fans, but realistically reflected the volatile nature of the Resistance's efforts to thwart to an alien invasion that seemed on the surface to be totally benevolent. Fortunes changed all the time.
|via Earth: Final Conflict Wikia|
My favorite character was Ronald Sandoval (Von Flores), who appeared throughout the series. He dies a punk, but embodies the best of Earth: Final Conflict's instincts. A few of the following episodes unabashedly feature Sandoval's unexpectedly nuanced role at its most dynamic, plus a few key developments otherwise:
1. "Sandoval's Run" (1x12)
Prior to this episode, as with most of the series, you may be forgiven to assume Sandoval is merely a stooge for the Taelons, the so-called Companions, helping to carry out their secret agenda. Except he's as much victim as anyone. Thanks to the CVI implant all Protectors receive (along with the Skrill weapon!), he's the opposite of what he'd otherwise be like (a parallel dimension seen in the second season episode "Dimensions" helps confirm this, where Sandoval is definitely one of the good guys). Turns out his is a tragic story, worse than Boone's experiences from the pilot.
2. "Gauntlet" (2x11)
Expanding the mythology of the series by explaining who the Jaridians are and their relationship to the Taelons, this one hints at how the series ends.
3. "Crossfire" (2x22)
The end of the second season sees Jonathan Doors' bid to become President explode in his face as he clashes with his son and the Resistance seems to come to a tragic end.
4. "Thicker than Blood" (3x6)
Liam Kinkaid's surprising link to Sandoval is exposed to his allies, who find it difficult to reconcile, especially when it means they probably ought to save the dude's life, too.
5. "Atonement" (4x17)
Sandoval's great bid for redemption on his own terms is probably his greatest moment as a character. Unfortunately it's all downhill from here.
6. "Boone's Awakening" (5x5)
As the title suggests, Boone returns, appearing for the first time since the first season finale, in a moment that helps explain the strange new circumstances for the final season, in which the Taelons and Jaridians have merged back together and become something worse.
7. "Final Conflict" (5x22)
The final episode of the series, in which Renee Palmer and Liam Kinkaid finally get to embrace humanity's destiny in space.
Classic opening theme (one of the best ever):