Select main cast and crew details for Suicide Squad Isekai, as listed in the official credits for the anime series, are as follows below.

Suicide Squad Isekai

Directed by Eri Osada
Produced by Shinya Tsuruoka
Written by Eiji Umehara, Tappei Nagatsuki
Music by Kenichiro Suehiro
Character designs by Naoto Hosoda, based on drafts by Akira Amano
Animation Studio – Wit Studio

“Another World” opening song composed by Tomoyasu Hotei
“Go-Getters” ending themed performed by Mori Calliope

Japanese cast
Anna Nagase as Dr. Harleen Quinzel / Harley Quinn
Yūichirō Umehara as The Joker
Reigo Yamaguchi as Floyd Lawton / Deadshot
Takehito Koyasu as Christopher Smith / Peacemaker
Jun Fukuyama as Basil Karlo / Clayface
Subaru Kimura as Nanaue / King Shark
Taku Yashiro as Rick Flag Jr.
Kujira as Amanda Waller
Chika Anzai as Tatsu Yamashiro / Katana
Reina Ueda as Princess Fione
Mamiko Noto as Queen Aldora / The Undead King
Jun Fukushima as Cecil
Yōji Ueda as Otis Flannegan / Ratcatcher
Hōchū Ōtsuka as The Thinker
Shizuka Itō as Dr. June Moon / Enchantress
Tarō Kiuchi as Waylon Jones / Killer Croc
Taito Ban as Adam
Hiroki Maeda as Wade
Masashi Yamane as Hank
Kokoa Amano as Arthur the Dragon
Nanako Mori as Knoll
Yukari Tamura as Lich

English cast
Karlii Hoch as Dr. Harleen Quinzel / Harley Quinn
Scott Gibbs as The Joker
Jovan Jackson as Floyd Lawton / Deadshot
Sean Patrick Judge as Christopher Smith / Peacemaker
Brandon Hearnsberger as Basil Karlo / Clayface
Andrew Love as Nanaue / King Shark
Jeremy Gee as Rick Flag Jr.
Jasmine Renee Thomas as Amanda Waller
Genevieve Simmons as Tatsu Yamashiro / Katana
Luci Christian as Princess Fione
Patricia Duran as Queen Aldora
Jade Kelly as The Undead King
John Gremillion as Cecil
Adam Noble as Otis Flannegan / Ratcatcher
Joe P. as Waylon Jones / Killer Croc
Jay Hickman as The Thinker
Christina Kelly as Dr. June Moon / Enchantress
Cyrus Rodas as Hank
Chaney Moore as Arthur the Dragon