Fan reactions to the initial footage of CBS's upcoming Supergirl TV show have been quite divisive, well ahead of the series' premiere on the network. The show's pilot - which leaked online before being screened at the 2015 San Diego Comic-Con (read our review) - has given us a clearer picture of what shape the DC Comics adaptation will start with, at the beginning of its freshman season.

Already well into production, Supergirl continues to take form, with the recent addition of Peter Facinelli as Maxwell Lord, a recurring character who's sure to make some trouble for the show's costumed hero. However, today brings news of another cast addition that could serve as one of the main villains of season one.

According to THR, Chris Browning - who appears in several episodes of Sons of Anarchy as Gogo - has joined the show as Ben Krull, better known as the villainous Reactron. On Supergirl, the character will reportedly head to National City hunting Kara Zor-El (Melissa Benoist) in order to get revenge on Superman. Browning will make his first appearance as a guest star in episode 3 and will likely become a recurring character thereafter.

Supergirl CBS poster excerpt

We've known for a while Reactron will make an appearance in Supergirl's first season, but it's still unclear what liberties Supergirl will take with his portrayal. In the comics, Reactron dons a nuclear-powered suit of armor to battle the Man of Steel and other DC heroes, but it's possible that the show may change his origin story to be more extra-terrestrial in nature. After all, the show's pilot focuses heavily on alien threats to Earth.

Regardless, adding a character like Reactron could be a smart way for Supergirl to tie itself to the larger Superman mythos without actually having the Man of Steel show up onscreen. It stands to reason that enemies like Reactron would be out for vengeance against Superman, and that (in the Supergirl live-action television universe) his less experienced cousin would seem an easier target than Kal-El himself.

Browning - a TV veteran who has also appeared on shows like Ray Donovan and From Dusk Till Dawn in recent years - should thus have some juicy villain role material to draw from here, which is a bonus for the small screen character actor.

Supergirl premieres on CBS at 8:30 p.m. EST on October 26th, 2015. It will air at 8 p.m. EST on Mondays thereafter.

Source: THR