In terms of space for new characters and alternate takes on established ones to show up and make waves, few series in the current superhero TV landscape have more built-in potential than DC's Legends of Tomorrow, which features both time-travel and alternate universes as a core part of its central mythos. The series has introduced multiple new characters to The CW's shared universe of DC-based shows, and has also set up possible futures for others.
Legends of Tomorrow season 2 will add a new legacy character, an inheritor to the already-established Vixen mantle. Vixen (aka Mari Jiwe McCabe), a DC Comics perennial and one of the most prominent black female characters in the overall DCU, was already the first character in the Arrowverse continuity to first debut in animated form as part of a web series on CW Seed - with her character then appearing in live-action on Arrow portrayed by Megalyn Echikunwoke.
The new version, set to be introduced as part of Legends of Tomorrow's second season, will be McCabe's granddaughter, whom Comic Book revealed will be portrayed by actress Maisie Richardson-Sellers, formerly of The Originals. Check out a description of the new character:
"Amaya Jiwe – better known as Vixen – is the newest superhero to board the Waverider and join the ranks of the Legends of Tomorrow. Like her grand[mother], Mari McCabe, Amaya’s powers are derived from the mysterious Tantu Totem, which allows her to magically access the abilities of animals."
In addition to The Originals, Richardson-Sellers has appeared in Of Kings and Prophets and Star Wars: The Force Awakens. Originally created in 1978 and eyed to become the first black female DC heroine to headline her own series, Vixen's planned debut was canceled when the company fell on hard times that same year amid the so-called "DC Implosion." She instead debuted alongside Superman in the pages of Action Comics several years later, but has since become a fan-favorite character with appearances in Grant Morrison's celebrated Animal Man revival and membership runs in both the Justice League and Suicide Squad teams.
Legends of Tomorrow is schedule to remain a cornerstone of The CW's DC Comics TV shows, which will now encompass a four-day block. Legends will run Thursdays, with the newly-arrived Supergirl on Mondays, The Flash on Tuesdays and original network mainstay Arrow on Wednesdays. In an unprecedented plan for such series, all four are expected to feature a major crossover event in December - which many fans hope will address the issue of whether or not Supergirl will remain in a separate reality from the others or be "unified" in some way.
The Flash season 3 will premiere Tuesday October 4th at 8pm on The CW, Arrow season 5 will premiere in the same timeslot on Wednesday October 5th, Legends of Tomorrow season 2 on Thursday October 13th, and Supergirl season 2 on Monday October 17th.
Source: Comic Book