Graham is joined by rock legend Bruce Springsteen, actors Kristin Scott Thomas and Matthew McConaughey, comedian Mawaan Rizwan and singer Sam Smith, who performs current single Diamonds.
| Name | Type | Role | |
|---|---|---|---|
| Sam Smith | Musical Guest | ||
| Kristin Scott Thomas | Guest Star | ||
| Mawaan Rizwan | Guest Star | ||
| Bruce Springsteen | Guest Star | ||
| Stephen Mangan | Guest Star | ||
| Matthew McConaughey | Guest Star |