Here is the Voltron crew as GOT7 members.
Shiro - Jinyoung
Keith - Mark
Lance - Jackson
Hunk - Yugyeom
Pidge - Bambam
Matt - Youngjae
James - Jaebeom
Allura - Jinyoung
Romelle - Youngjae
Acxa - Mark
Lotor - Jaebeom
Veronica - Yugyeom
Coran - Bambam