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Phil LaMarr
as Baxter Stockman in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Thomas Ian Griffith
as Agent John Bishop in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Robert Foxworth
as Emil Hamilton in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Gary Cole
as Maxwell Lord in Ben 10/Justice League chapter 16 (credit to Darkstorm)
Michelle Forbes
as Circe in Ben 10/Justice League: The Series

Laura Post
as Circe in Ben 10/Justice League: The Series

Lena Headey
as Circe in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Ming-Na Wen
as Lady Shiva in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Erica Lindbeck
as Omen in Ben 10/Justice League chapter 16 (credit to Darkstorm)
Tara Strong
as Oracle in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Jason Isaacs
as Sinestro in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Phil LaMarr
as Green Lantern Beta in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Erica Lindbeck
as Lindsey Baker in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Zachary Levi
as Shazam in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Veronica Taylor
as Lindsey Baker in Ben 10/Justice League chapter 16 (credit to Darkstorm)
Ashley Eckstein
as Starfire in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Thom Adcox-Hernandez
as Klarion in Ben 10/Justice League chapter 16 (credit to Darkstorm)
Paul Eiding
as Grandpa Max Tennyson in Ben 10/Justice League chapter 16 (credit to Darkstorm)

Kelly Hu
as Karai in Ben 10/Justice League chapter 16 (credit to Darkstorm)
C. Thomas Howell
as Reverse Flash in Ben 10/Justice League chapter 16 (credit to Darkstorm)