Role	2004 / 2006 (Cosmos)	2004 / 2006 (Moon)	2018 (Moon)
Scott Fitzgerald	Yamato Yuuga	Oozora Yuuhi	Tsukishiro Kanato
Zelda Fitzgerald	Ayano Kanami (2004) / Shijou Rui (2006)	Shijou Rui (2004) / Ayano Kanami (2006)	Umino Mitsuki
Sheilah Graham	Itsumine Aki	Itsumine Aki	Touka Yurino
Maxwell Perkins	Misato Maya	Yoshizuki Eri	Yuuma Rin
Doctor	Natsu Hiromi	Isshiki Ruka	Hibiki Reona
Ernest Hemingway	Ryouga Haruhi	Tsukifune Sarara (2004) / Hokushou Kairi (2006)	Akatsuki Chisei
Francis Scott (Scottie) Fitzgerald	Sakihana An	Suzushiro Marina	Nanano Ari
Edouard Jozan	Tsukioka Nanao	Mano Sugata	Hanabusa Kaoto
Perkins' Secretary (Eileen)	Tsukishiro Misaki	Amano Hotaru	Kiyoka Ran
Laura Guthrie	Mikaze Maira	Aoba Michiru	Kagetsu Miyako
Lois Moran	Ayuse Mito	Hihou Kokoro	Natsukaze Kiki
Female Doctor (Nurse)	Oomi Ako	Shimizu Kyouka	Momoka Yuki
Student in a Park	Suzu Haruki	Asumi Rio	Kazama Yuno
A Paris Boy	Mimaki Sakyou	Ayao June	-
Reporter	Yakumo Mika	Ayazuki Seri	Ranze Keito
Reporter			Amana Ruria

Note: Both Cosmos Troupe and Moon Troupe re-staged their 2004 productions in 2006. The casts were the same except the musumeyaku leads were switched. This was unusual because Ayano Kanami had already become top musumeyaku of Moon Troupe by this time. Also, Tsukifune Sarara had retired by 2006, necessitating one other role change.