Cartoon Network is set to unveil "Justice League Action" in December, and everyone is just so excited to check it out.

Since the network's newest animated series debuted in the UK last week, "Justice League Action" has been getting positive reviews from both viewers and critics. The title sequence to "Justice League Action" has also hit the internet recently, offering a glimpse of the fan-favorite superheroes.

Much to the delight of fans, the short clip features a slew of heroes who refer to themselves as the Justice League. Shown at the front and center are characters like Wonder Woman, Green Arrow, Superman and Batman. The clip also reveals the other superheroes who will make brief appearances in the series, such as Stargirl.

As the series premieres next month, fans can expect to hear familiar voices as Kevin Conroy and Mar Hamill will reprise their vocal work as Batman and Joker, respectively, after lending their voices to the same characters in "Batman: The Animated Series."

Meanwhile, below is the description of "Justice League Action:"

"The world's greatest superheroes return to television in 'Justice League Action,' an all-new quarter-hour animated series from Warner Bros. Animation coming soon to Cartoon Network. Batman, Superman and Wonder Woman lead the DC Comics superheroes against their most infamous foes in adventures packed with relentless thrills, fun and action. No need to wait for the good stuff to start, each eleven-minute episode jumps in with lightning-paced action and heroics. Whether defending the Earth, facing invaders from space, or battling the bizarre forces of magic, the always-rotating team of Justice League heroes, are up to any challenge."

"Justice League Action" premieres on December 16 on CN. Watch the Justice League Action Cartoon Network UK Full Promo.