23) XENA (Lucy Lawless, Xena: Warrior Princess)
We first saw Xena as a violent warlord in three episodes of Hercules: The Legendary Journeys, before the kick-ass warrior earned her own popular series in which she battled evil in ancient Greece.
22) WONDER WOMAN (Lynda Carter, Wonder Woman)
The DC Amazon heroine earned herself a hugely popular series in the late 70s, with former beauty pageant winner Carter playing the Nazi-kicking, alien-busting gal in Stars and Stripes hotpants.
21) WILLOW ROSENBERG (Alyson Hannigan, Buffy the Vampire Slayer)
Aside from its titular heroine, Buffy the Vampire Slayer boasted plenty of other strong female roles, and one of the most popular was Buffy’s pal, Willow. The character went through some interesting developments over the course of the show, including studying witchcraft and eventually coming out as a lesbian.