Ben 10

Josh Keaton was born on February 8, 1979 in Pasadena, California, USA as Joshua Luis Wiener. He is known for his work on Hercules (1997), Voltron: Legendary Defender (2016) and Metal Gear Solid 3: Snake Eater (2004). He has been married to Elizabeth Melendez since May 30, 2009.

Josh Keaton plays as XLR8 in Ben 10.
Josh Keaton is the top #1 member of the cast and appears in 166 episodes.

Daryl Sabara (born June 14, 1992) is an American film and television actor, best known for playing Juni Cortez in the Spy Kids trilogy, as well as for a variety of television and film appearances, including Wizards of Waverly Place, Father of the Pride, The Polar Express, Keeping Up with the Steins, Halloween, and the reality show America's Most Talented Kids, on which he was a judge. He is currently the lead actor in Cartoon Network's Generator Rex.

Daryl Sabara plays as Heatblast in Ben 10.
Daryl Sabara is the top #2 member of the cast and appears in 166 episodes.

Travis Willingham plays as Cameron Campbell (voice) in Ben 10.
Travis Willingham is the top #3 member of the cast and appears in 59 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 Barbara Gordon, Batgirl in Ben 10.
Tara Strong is the top #4 member of the cast and appears in 52 episodes.

Montse Hernandez plays as June in Ben 10.
Montse Hernandez is the top #5 member of the cast and appears in 21 episodes.

John William DiMaggio is an American voice actor. A native of North Plainfield, New Jersey, he is known for his gruff, deep voice and New Jersey accent, which he uses to voice mainly villains and anti-heroes. He is best known for his voice roles of Bender in Futurama, Dr. Drakken and Motor Ed in Kim Possible, Marcus Fenix in Gears of War and Gears of War 2, Rico in the Penguins of Madagascar series, and Wakka as well as Kimahri Ronso in Final Fantasy X. He now participates in the animated child comedy Chowder as Shnitzel, and Jake in the new animated series Adventure Time with Finn and Jake.

John DiMaggio plays as Lord Festus in Ben 10.
John DiMaggio is the top #6 member of the cast and appears in 20 episodes.

David V. Hope (born October 14, 1964), better known by his stage name, David Kaye, is a Canadian actor who is most active in voice overs. His most recognized roles include Sesshomaru in the shōnen animeInuYasha, Treize Khushrenada in Mobile Suit Gundam Wing, Megatron in five of the Transformers series (Beast Wars, Beast Machines, Transformers: Armada, Transformers: Energon, and Transformers: Cybertron), Cronus in Class of the Titans, and Clank in the Ratchet & Clank series of video games. He is the in house announcer for Last Week Tonight with John Oliver on HBO providing his voice for the "And Now This" segments in the middle of the show.

David Kaye plays as Cringer, Battle Cat (voice) in Ben 10.
David Kaye is the top #7 member of the cast and appears in 10 episodes.

Roger Craig Smith (Born August 11, 1975 in Orange County, California) is an American voice actor. He is also known as Roger C. Smith. He is generally known as the voice behind Chris Redfield in Resident Evil 5 and Resident Evil: The Darkside Chronicles, as Ezio Auditore da Firenze in Assassin's Creed II, Assassin's Creed: Brotherhood and Assassin's Creed: Revelations, and as the current voice of Sega mascot Sonic the Hedgehog. Description above from the Wikipedia article Roger Craig Smith, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Roger Craig Smith plays as Kronis, Trap-Jaw (voice); General Dolos (voice) in Ben 10.
Roger Craig Smith is the top #8 member of the cast and appears in 10 episodes.