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Chris Pratt (Cooper (voice)) leads the Ben 10: Ultimate Alien cast as the #599 ranked actor globally. Cast members below include current popularity rankings where available.
December 24, 2025

Top 10 Cast Members

Ranked by Wikipedia pageviews on December 23, 2025
#1
Chris Prattas Cooper (voice)
Rank #5996,878 daily views
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#2
James Remaras Vilgax (voice)
Rank #6386,584 daily views
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#3
J.K. Simmonsas Magister Gilhil / Plumber (voice)
Rank #6466,496 daily views
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#4
Wil Wheatonas Mike Morningstar / Darkstar (voice)
Rank #1,1104,528 daily views
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#5
Ashley Johnsonas Gwen Tennyson (voice)
Rank #1,2104,280 daily views
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#6
Miguel Ferreras Magister Hulka / Alpha #4 (voice)
Rank #1,4403,783 daily views
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#7
David McCallumas Professor Paradox (voice)
Rank #2,3072,557 daily views
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#8
Peter Stormareas King Xarion / King Viktor (voice)
Rank #2,3962,480 daily views
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#9
Nicholas Guestas Simons / Worker / Guest (voice)
Rank #2,5922,314 daily views
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#10
Tara Strongas Serena / Young Ben Tennyson (voice)
Rank #3,2511,882 daily views
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Ben 10: Ultimate Alien Full Cast

All 59 cast members with rankings based on Wikipedia pageviews
YL
Yuri Lowenthal
as Ben Tennyson (voice) · 52 eps
Rank #6,638853 daily views

Yuri Lowenthal voices Ben Tennyson, the young hero with the ability to transform into various aliens.

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AJ
Ashley Johnson
as Gwen Tennyson (voice) · 52 eps
Rank #1,2104,280 daily views

Ashley Johnson provides the voice for Gwen Tennyson, Ben's intelligent and resourceful cousin.

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GC
Greg Cipes
as Kevin Levin (voice) · 52 eps
Rank #11,396380 daily views

Greg Cipes voices Kevin Levin, a former foe turned ally with the power to absorb materials around him.

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DB
Dee Bradley Baker
as Humungosaur (voice) · 52 eps
Rank #4,9681,229 daily views

Dee Bradley Baker voices Humungosaur, one of Ben's alien transformations known for its strength and size.

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CP
Chris Pratt
as Cooper (voice) · 2 eps
Rank #5996,878 daily views

Chris Pratt lends his voice to Cooper, a skilled young technician and ally of Ben.

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PB
Powers Boothe
as Sunder (voice) · 1 ep
Rank #5,7171,036 daily views

Powers Boothe voices Sunder, a formidable bounty hunter in the series.

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PS
Peter Stormare
as King Xarion / King Viktor (voice) · 1 ep
Rank #2,3962,480 daily views

Peter Stormare provides the voice for King Xarion and King Viktor, characters with regal authority and ambition.

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BL
Beth Littleford
as Sandra Tennyson (voice) · 1 ep
Rank #17,972146 daily views

Beth Littleford voices Sandra Tennyson, Ben's caring and supportive mother.

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GE
Greg Ellis
as Dagonet / Reporter Chet Rigby (voice) · 1 ep
Rank #17,576154 daily views
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SM
Scott Menville
as Jimmy Jones (voice) · 3 eps
Rank #12,483323 daily views

Scott Menville voices both Jimmy Jones and J.T., among other characters, contributing to the series' engaging character dynamics.

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JS
J.K. Simmons
as Magister Gilhil / Plumber (voice) · 1 ep
Rank #6466,496 daily views
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FT
Fred Tatasciore
as Foreman / Surgeon / Hammer (voice) · 1 ep
Rank #7,148773 daily views
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NG
Nicholas Guest
as Simons / Worker / Guest (voice) · 1 ep
Rank #2,5922,314 daily views
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PM
Peter MacNicol
as Oliver / Forever Knight #1 (voice) · 2 eps
Rank #5,1551,171 daily views
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ML
Matt Levin
as Cash (voice) · 1 ep
Rank #35,4086 daily views
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TS
Tara Strong
as Serena / Young Ben Tennyson (voice) · 1 ep
Rank #3,2511,882 daily views
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XB
Xander Berkeley
as Warden Morgg / Trukk (voice) · 1 ep
Rank #6,841823 daily views
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KR
Kevin Michael Richardson
as Magister Pyke (voice) · 1 ep
Rank #5,889997 daily views
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BG
Brian George
as Victor Valadis / Janitor (voice) · 1 ep
Rank #10,803418 daily views
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MF
Miguel Ferrer
as Magister Hulka / Alpha #4 (voice) · 1 ep
Rank #1,4403,783 daily views
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RP
Rob Paulsen
as Technician / Rhomboid Vreedle / Engineer #2 (voice) · 1 ep
Rank #7,517724 daily views
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CS
Charlie Schlatter
as Tack / Plumber (voice) · 1 ep
Rank #12,344330 daily views
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OH
Olivia Hack
as Emily (voice) · 1 ep
Rank #12,315331 daily views
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JM
Jason Marsden
as Antonio (voice) · 1 ep
Rank #5,5291,076 daily views
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PE
Paul Eiding
as Max Tennyson / Guard #1 / Guard #2 (voice) · 7 eps
Rank #18,972127 daily views
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DM
David McCallum
as Professor Paradox (voice) · 3 eps
Rank #2,3072,557 daily views
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JL
Juliet Landau
as Natalie Tennyson / Melinda (voice) · 3 eps
Rank #10,828416 daily views
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JT
James Arnold Taylor
as Announcer / Fake Vilgax / Fridge (voice) · 1 ep
Rank #10,380449 daily views
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AW
Adam Wylie
as Pierce / Forever Knight #3 (voice) · 1 ep
Rank #16,826172 daily views
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MQ
Molly C. Quinn
as Eunice / Computer (voice) · 2 eps
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DB
Diedrich Bader
as Simian (voice) · 1 ep
Rank #5,0631,196 daily views
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JP
Jon Polito
as Mizaru (voice) · 1 ep
Rank #11,380381 daily views
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AP
Alexander Polinsky
as Argit (voice) · 4 eps
Rank #19,790113 daily views
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DS
Dwight Schultz
as Dr. Animo / Teacher #2 (voice) · 2 eps
Rank #5,992976 daily views
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TT
Tia Texada
as Elena Validus (voice) · 2 eps
Rank #19,534117 daily views
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KY
Keone Young
as Julie's Dad / Repair Man / Cop (voice) · 1 ep
Rank #14,570239 daily views
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YA
Yeni Alvarez
as Dr. Borges (voice) · 1 ep
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BM
Bill Mumy
as Agent Bryson (voice) · 1 ep
Rank #5,3221,130 daily views
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VL
Vicki Lewis
as Agent Locke (voice) · 1 ep
Rank #8,720586 daily views
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PR
Peter Renaday
as Sir George (voice) · 5 eps
Rank #21,25592 daily views
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DD
Diane Delano
as Ma Vreedle / Pretty Boy Vreedle (voice) · 1 ep
Rank #17,736151 daily views
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JB
Jeff Bennett
as Pops Vreedle / Jailer (voice) · 1 ep
Rank #7,762692 daily views
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RD
Robin Atkin Downes
as Sir Cyrus / Additional Voices (voice) · 2 eps
Rank #10,329453 daily views
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RD
Richard Doyle
as Driscoll / Additional Voices (voice) · 2 eps
Rank #25,47050 daily views
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KP
Khary Payton
as Hex (voice) · 1 ep
Rank #10,968407 daily views
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KW
Kari Wahlgren
as Charmcaster (voice) · 4 eps
Rank #7,683702 daily views
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CM
Christopher McDonald
as Captain Nemesis (voice) · 2 eps
Rank #4,6101,334 daily views
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WW
Wil Wheaton
as Mike Morningstar / Darkstar (voice) · 3 eps
Rank #1,1104,528 daily views
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MM
Marianne Muellerleile
as Maureen (voice) · 1 ep
Rank #19,717114 daily views
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TP
Tara Platt
as Jennifer Nocturne (voice) · 2 eps
Rank #15,681203 daily views
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DJ
Danny Jacobs
as Captain / Police Dispatch / Dr. Pervis (voice) · 1 ep
Rank #18,353138 daily views
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PC
Patrick Cavanaugh
as Winston / Esoterica / Additional Voices (voice) · 3 eps
Rank #26,49443 daily views
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JR
James Remar
as Vilgax (voice) · 5 eps
Rank #6386,584 daily views
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JD
John DiMaggio
as Aggregor (voice) · 5 eps
Rank #4,4721,377 daily views
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JP
Jim Piddock
as King Urien / Color Commentator / Chair Umpire (voice) · 1 ep
Rank #11,155394 daily views
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VP
Vyvan Pham
as Julie Yamamoto / Computer Voice (voice) · 5 eps
Rank #33,68910 daily views
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ZR
Zeno Robinson
as Alan Albright / Heatblast (voice) · 2 eps
Rank #8,478611 daily views
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TM
Tress MacNeille
as Zennith (voice) · 1 ep
Rank #7,345745 daily views
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SD
Sean Donnellan
as Ben 10,000 / Eon (voice) · 1 ep
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Ben 10: Ultimate Alien Stats
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