Casting | Rôle |
|---|
| Donnie Wahlberg | Self - New Kids on the Block |
| Donny Osmond | Self - The Osmonds |
| Nick Lachey | Self - 98 Degrees |
| Zac Hanson | Self - Hanson |
| Chris Kirkpatrick | Self - *NSYNC |
| Tiffany | Self - Singer/Songwriter |
| AJ McLean | Self - Backstreet Boys |
| Lance Bass | Self - *NSYNC |
| Taylor Hanson | Self - Hanson |
| Michael Bivins | Self - New Edition |
| Isaac Hanson | Self - Hanson |
| Nick Jonas | Self (archive footage) |
| Joe Jonas | Self (archive footage) |
| Tina Treadwell | Self - Disney Channel VP (1997-2001) |
| Lyndsey Parker | Self - Music Times |
| Kevin Jonas | Self (archive footage) |
| Jeff Timmons | Self - 98 Degrees |
| Mark Wahlberg | Self (archive footage) |
| John Norris | Self - MTV News (1987-2008) |
| Lori Majewski | Self - On-Air Host, Sirius XM | Co-Founder, Teen People |
| Debbie Gendler | Self - Author, I Saw Them Standing There |
| Barry Weiss | Self - President, Jive Records (1995-2002) |
| Vivek Tiwary | Self |
| Brittany Spanos | Self - Senior Writer, Rolling Stone |
| Quddus | Self - MTV Host, Total Request Live (2001-2006) |
| Van Toffler | Self - MTV Executive (1986-2015) |
| Johnny Wright | Self - Manager, Backstreet Boys (1993-1998) & *NSYNC |
| Yve Blake | Self - Playwright, Fangirls |
| Suzanne de Passe | Self - Former President, Motown Productions |
| Tracey J. Jordan | Self - Former VP, Motown Records (1988-1992) |
| Steve Greenberg | Self - Head of A&R, Mercury Records (1995-2000) |
| Amanda Layne Miller | Self - Fangirl Central |
| Amber Miller | Self - Fangirl Central |
| Lindsay Webster | Self - Producer, Buzzfeed |
| Jeff Benjamin | Self - K-Pop Columnist, Billboard |
| Abby Webster | Self - Culture Writer |
| 버논 | Self - Seventeen |
| 호시 | Self - Seventeen |
| Britney Spears | Self (archive footage) |
| Harry Styles | Self (archive footage) |
| Liam Payne | Self (archive footage) |
| Louis Tomlinson | Self (archive footage) |
| Michael Jackson | Self (archive footage) |
| John Lennon | Self (archive footage) |
| Ringo Starr | Self (archive footage) |
| Paul McCartney | Self (archive footage) |
| George Harrison | Self (archive footage) |
| Elvis Presley | Self (archive footage) |
| Lou Pearlman | Self (archive footage) |
| Jordan Knight | Self (archive footage) |
| JC Chasez | Self (archive footage) |
| Justin Timberlake | Self (archive footage) |
| Brian Littrell | Self (archive footage) |
| Howie Dorough | Self (archive footage) |
| Drew Lachey | Self (archive footage) |
| Kevin Richardson | Self (archive footage) |
| Ricky Martin | Self (archive footage) |
| Jonathan Knight | Self (archive footage) |
| Danny Wood | Self (archive footage) |
| Joe Jackson | Self (archive footage) |
| Zayn Malik | Self (archive footage) |
| Niall Horan | Self (archive footage) |
| 지민 | Self (archive footage) |
| 뷔 | Self (archive footage) |
| 정국 | Self (archive footage) |
| RM | Self (archive footage) |
| 진 | Self (archive footage) |
| 슈가 | Self (archive footage) |
| 제이홉 | Self (archive footage) |
| 민규 | Self (archive footage) |
| 정한 | Self (archive footage) |
| 원우 | Self (archive footage) |
| 디에잇 | Self (archive footage) |
| 우지 | Self (archive footage) |
| 승관 | Self (archive footage) |
| 에스쿱스 | Self (archive footage) |
| 디노 | Self (archive footage) |
| 文俊辉 | Self (archive footage) |
