It stars Scott Menville, Hynden Walch, Khary Payton, Tara Strong, and Greg Cipes as the main characters.

The series focuses on a team of crime-fighting teenaged superheroes, consisting of the leader Robin, foreign alien princess Starfire, green shapeshifter Beast Boy, the dark sorceress Raven, and the technological genius Cyborg.

The season focuses on Raven, whose destiny to be the key to the world's destruction causes secrets about her past to unravel and the return of her father and old enemy, Trigon.

[1] The episodes for the season were written by a team of writers, which consisted of Richard Elliott, Melody Fox, Rob Hoegee, Greg Klein, Thomas Pugsley, Simon Racioppa, David Slack, and Amy Wolfram.

[1] The season employed a number of storyboard artists, including Eric Canete, Colin Heck, Kalvin Lee, Keo Thongkham, Scooter Tidwell, Alan Wan and Matt Youngberg.

[1] The five voice actors for the main characters - Scott Menville, Hynden Walch, Greg Cipes, Tara Strong, and Khary Payton - reprise their roles in the fourth season as Robin, Starfire, Beast Boy, Raven, and Cyborg, respectively.

Kevin Michael Richardson returns to the series, providing the voice for Trigon, Raven's father and the season's main antagonist as well as voices for various roles, including The Bear and The Snake in the episode "The Quest" and reprises his role as Mammoth and See-More in the episode "Mother Mae-Eye".

[2] Veteran actors Takayo Fischer and Keone Young provided voices for the characters Chu-Hui, Katarou and The Monkey in the episode "The Quest".

[4] The episode "Cyborg the Barbarian" features the vocal talents of Kimberly Brooks as Sarasim and Michael Clarke Duncan as both Krall and Hayden.

[6] In the episode "Troq", Stephen Root provides the voice of Val-Yor, an alien fighting a militia of robots while harboring hate towards Starfire and her race.

Mac McEntire of DVD Verdict awarded the fourth season a score of 87, commending the writers for creating "smarter, deeper, and emotionally rich stories", highlighting Raven's story arc, and added that "the Terra storyline in Season Two showed that this series could handle bigger, more serious storylines.

When the Titans respond to an alert, they face off against Slade, who has acquired new powers and has a message from Raven's father, foretelling her destiny.

Cyborg is accidentally thrown five thousand years into the past, and by coincidence comes to the aid of a young woman named Sarasim, whose tribe is under attack by a horde of creatures.

Amidst a series of UFO raids on farms (with the targets being cows, to everyone's mystification), Beast Boy wants a moped but has no money to get one of his own.

Despite his strength, courage and bravery, he displays a noticeable hatred for Starfire and the rest of her Tamaranian kind, giving her the nickname "Troq", causing some discomfort among the team.

Beast Boy displays a bad hand in technological skills, even with simplified instructions from Cyborg, Raven is being followed around by small alien creatures, and Robin and Starfire must come to terms about their strong romantic feelings for each other.