- Muse
- Matthew Bellamy – vocals; lead and rhythm guitars; piano; Hammond organ on "Falling Down", "Unintended" and "Escape"; mellotron on "Muscle Museum" and "Unintended", Wurlitzer electric piano on "Fillip" and "Hate This & I'll Love You"; synthesizers on "Cave", guitar synthesizer on "Sober"; harmonium on "Escape"; string arrangements on "Showbiz"; production and mixing on "Muscle Museum", "Unintended", "Uno" and "Sober"; artwork
- Christopher Wolstenholme – bass; backing vocals; double bass on "Falling Down" and "Unintended"; production and mixing on "Muscle Museum", "Unintended", "Uno" and "Sober"
- Dominic Howard – drums; percussion on "Showbiz", "Uno" and "Hate This & I'll Love You"; synthesizer on "Muscle Museum"; production and mixing on "Muscle Museum", "Unintended", "Uno" and "Sober"
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- Additional personnel
- John Leckie – production and mixing on "Sunburn", "Fillip", "Falling Down", "Cave", "Escape", "Overdue" and "Hate This & I'll Love You"
- Paul Reeve – production and mixing on "Muscle Museum", "Unintended", "Uno" and "Sober"; backing vocals on "Unintended", "Uno", "Overdue" and "Hate This & I'll Love You"
- Tanya Andrew – artwork
- Craig Gentle – design
- Ralf Strathmann – photography
- Frederic Gresse – photography
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