The DC Universe's Titan episode begins with only four core characters: Dick Grayson, The Raven, Spark, and Beast Boy.

But soon, as the series progressed, the DC side-line superhero team began to grow. Jason Todd then joined the team.
Then, with the addition of Connor Kent, Donna Troy, Jericho, and the Marauders, the team continued to expand in the second season.
So, although the team started with only 4 members at the beginning of the first season, the team was much larger as the second season drew to a close.
Now, there will be more new characters in the third season, Barbara Gordon and Danny Chase, aka Phantom will appear in the show.
With so many young superheroes in the series now, Titan episodes could be even more exciting.
And it is possible to divide this group into two different superhero groups, and later introduce the Teen Titans.