Voice Talent: Yuri Lowenthal (Ben), Ashley Johnson (Gwen), Greg Cipes (Kevin), Dee Bradley Baker (Humungousaur / Swampfire / Amalgamation Robot / Lodestar / Spidermonkey), John DiMaggio (Octogon), Rob Paulsen (Rhomboid), Diane Michelle (Cosmic Mom)
Written By: Jake Black
Directed By: Rick Morales
Ep: 39
Con of Rath
Voice Talent: Yuri Lowenthal (Ben), Ashley Johnson (Gwen / Cicely), Greg Cipes (Kevin), Dee Bradley Baker (Tiffin / Zaw-Veenull / Commander Sangfroid), John DiMaggio (Octogon / Vulcanus / Rath), Alexander Polinsky (Argit / Jarett), Rob Paulsen (Rhomboid)
Written By: Len Uhley
Directed By: Dan Riba
Ep: 40
Primus
Voice Talent: Yuri Lowenthal (Ben / Omnitrix), Ashley Johnson (Gwen), Greg Cipes (Kevin), Dee Bradley Baker (Lodestar / Cannonbolt / Waybig / Psyphon), Jeff Glen Bennett (Azmuth), James Remar (Vilgax / Goop)
Written By: Charlotte Fullerton
Directed By: Butch Lukic
Ep: 41
Time Heals
Voice Talent: Yuri Lowenthal (Ben / Captive #1), Ashley Johnson (Gwen), Greg Cipes (Kevin), Dee Bradley Baker (Spidermonkey / Swampfire / Rock Monster #1), Kari Wahlgren (Charmcaster), Khary Payton (Hex), David McCallum (Paradox)
Written By: Len Uhley
Directed By: Rick Morales
Ep: 42
The Secret of Chromastone
Voice Talent: Yuri Lowenthal (Ben), Ashley Johnson (Gwen / Mr. Smoothy Girl), Greg Cipes (Kevin), Dee Bradley Baker (Diamondhead / Chromastone / Humungousaur / Jet Ray / Echo Echo), Dave Fennoy (Tetrax), James Remar (Vilgax)
Written By: Rich Fogel
Directed By: Dan Riba
Ep: 43
Above and Beyond
Voice Talent: Yuri Lowenthal (Ben), Dee Bradley Baker (Goop / Big Chill / Humungousaur / Echo Echo), Paul Eiding (Grandpa Max), John DiMaggio (Rath / Computer Voice), Juliet Landau (Helen), Zeno Robinson (Alan), Adam Wylie (Pierce), Khary Payton (Manny)
Written By: Eugene Son
Directed By: Butch Lukic
Ep: 44
Vendetta
Voice Talent: Yuri Lowenthal (Ben), Ashley Johnson (Gwen), Greg Cipes (Kevin), Dee Bradley Baker (Diamondhead / Lodestar / Knight Leader), Paul Eiding (Grandpa Max), John Di Maggio (Ragnorok / Rath), Pamela Adlon (Kevin's Mom), Ioan Gruffudd (Devin Levin / Robot Guard)
Written By: Len Wein
Directed By: Rick Morales
Ep: 45
The Final Battle, Part 1
Voice Talent: Yuri Lowenthal (Ben / Negative Ben / Omnitrix / Kenko), Ashley Johnson (Gwen), Greg Cipes (Kevin), Dee Bradley Baker (Diamondhead / Big Chill / Jet Ray / Swampfire / SpiderMonkey / Humungousaur / Ultimate Humungousaur), Paul Eiding (Ishyama / Grandpa Max), Jeff Glen Bennett (Azmuth / Policeman / Kraab), Vyvan Pham (Ship / Myaxx), James Remar (Vilgax)
Written By: Dwayne McDuffie
Directed By: Dan Riba
Ep: 46
The Final Battle, Part 2
Voice Talent: Yuri Lowenthal (Ben / Omnitrix / Negative Ben), Ashley Johnson (Gwen), Greg Cipes (Kevin), Dee Bradley Baker (Diamondhead / Lodestar / Swampfire / Ultimate Swampfire / SpiderMonkey / Humungousaur / Ultimate Humungousaur), Paul Eiding (Grandpa Max), Jeff Glen Bennett (Azmuth), James Remar (Vilgax)
Written By: Dwayne McDuffie
Directed By: Butch Lukic
Ep:
Ben 10: Alien Swarm
Starring: Ryan Kelley (Ben Tennyson), Galadriel Stineman (Gwen Tennyson), Nathan Keyes (Kevin E. Levin), Alyssa Diaz (Elena Validus)
With: Herbert Siguenza (Victor Validus)
And: Barry Corbin (Grandpa Max Tennyson)
Cast: Dee Baker (Voice of Big Chill), Alex Winter (Voice of Nanomech), Wendy Cutler (Voice of Alien Chip Queen), Joyce Kurtz (Voice of Computer), Patrick Cox (Big Ed), Jeremy DeCarlos (Helio), Eric Mendenhall (Fitz), Tony Larkin (Ship-It Clerk), Aaron Munoz (Psycho 1), Justin Welborn (Psycho 2), Michelle Wang (Molly), Wilbur Fitzgerald (Financial Guy in Suit), Deborah Calloway Duke (Nurse), Nicole "Park" Krausen (International Plumber 1), Shankar N. Mahadevan (International Plumber 2), Brian Beegle (Genaro), Leroy Winter (Zombie Boy)
