| 阿莉埃蒂 | 志田未来
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| 翔 | 神木隆之介
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| 荷米莉 | 大竹忍
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| 波德 | 三浦友和
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| 贞子 | 竹下景子
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| 春 | 树木希林
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| 斯莱碧 | 藤原龙也
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| Pod (voice: English version) | 威尔·阿奈特
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| Sadoko (voice: English version) | 卡洛尔·伯纳特
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| Sh? (voice: English version) | 大卫·亨瑞
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| Rodent Control Serviceman (voice: English version) | Peter Jason
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| Arrietty (voice: English version) | Bridgit Mendler | |
| Homily (voice: English version) | 艾米·波勒
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| Arrietty (voice: UK version) | 西尔莎·罗南
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| Pod (voice: UK version) | 马克·斯特朗
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| Homily (voice: UK version) | 奥莉薇娅·柯尔曼
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| Spiller (voice: US version) | Moises Arias
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| Haru (voice: UK version) | 杰拉尔丁·麦克伊万
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| Sadako (voice: UK version) | 菲丽达·劳
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| Additional Voices (voice: US version) | 弗兰克·马歇尔
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| Additional Voices (voice: US version) | 凯利·柯克帕特里克
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| Sh? (voice: UK version) | 汤姆·赫兰德
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| Spiller (voice: UK version) | Luke Allen-Gale | |
| Aunt Jessica (voice: US version) | Gracle Poletti | |
| Harachi (voice: US version) | Dale Sison | |
| (voice: UK version) | Ray Gillon | |
