Gregory Michael Cipes (born January 4, 1980) is an American voice and film actor. He is also a singer, musician, composer, and professional surfer. Description above from the Wikipedia article Greg Cipes, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Greg Cipes plays as Beast Boy in Teen Titans Go!.
Greg Cipes is the top #1 member of the cast and appears in 305 episodes.

Hynden Walch plays as Starfire in Teen Titans Go!.
Hynden Walch is the top #2 member of the cast and appears in 305 episodes.

From Wikipedia, the free encyclopedia. Khary Payton (born May 16, 1972 in Augusta, Georgia) is an American actor and voice actor best known for playing Cyborg in the Teen Titans animated series and the upcoming Online video Game: DC Universe Online. In the cartoon series Justice League, Payton provided the voice of the villain Ten (from the Royal Flush Gang). He also provided the voice of Drebin in the game Metal Gear Solid 4: Guns of the Patriots. Currently, he appears on a recurring basis as Dr. Terrell Jackson on the ABC daytime soap opera General Hospital. Description above from the Wikipedia article Khary Payton, licensed under CC-BY-SA, full list of contributors on Wikipedia​

Khary Payton plays as Wasabi (voice) in Teen Titans Go!.
Khary Payton is the top #3 member of the cast and appears in 65 episodes.

Scott David Menville (born February 12, 1971) is an American actor, voice actor and musician. He is best known for his voice work in animated films and television series.

Scott Menville plays as Doc Ock, Otto Octavius (voice) in Teen Titans Go!.
Scott Menville is the top #4 member of the cast and appears in 57 episodes.

Tara Lyn Charendoff-Strong (born February 12, 1973) is a Canadian-American actress, voice-over artist, comedian, musician, singer, and businesswoman, who is best known for her roles as Timmy Turner in the The Fairly OddParents, Bubbles in The Powerpuff Girls, Ben Tennyson in Ben 10 and Ben 10: Ultimate Alien, Dil Pickles in Rugrats and All Grown Up, and her recurring role as Miss Collins in Big Time Rush. Description above from the Wikipedia article Tara Strong, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Tara Strong plays as Miss Minutes (voice) in Teen Titans Go!.
Tara Strong is the top #5 member of the cast and appears in 6 episodes.