Samuel Larsen

Self - Contestant

Darren Criss

Self - Guest Judge / Mentor

Kevin McHale

Self

Damian McGinty

Self - Contestant

Lindsay Pearce

Self - Contestant

Alex Newell

Self - Contestant

Hannah McIalwain

Self - Contestant

Cameron Mitchell

Self - Contestant

Marissa Von Bleicken

Self - Contestant

Matheus Fernandes

Self - Contestant

Miki Abraham

Self - Contestant

Emily Vásquez

Self - Contestant

Ellis Wylie

Self - Contestant

Lea Michele

Self

Idina Menzel

Self - Guest Judge / Mentor

Dot-Marie Jones

Self

Harry Shum Jr.

Self

Max Adler

Self

Mark Salling

Self

Ashley Fink

Self

Jenna Ushkowitz

Self

Ryan Murphy

Self

Cory Monteith

Self

Naya Rivera

Self

Jane Lynch

Self

Grant Gustin

Self

Amber Riley

Self

Dianna Agron

Self

Chris Colfer

Self

Bryce Ross-Johnson

Self - Contestant

John Ross Bowie

Dennis (cameo)

Blake Jenner

Self - Contestant

Ali Stroker

Self - Contestant

Aylin Bayramoglu

Self - Contestant

Lily Mae Harrington

Self - Contestant

Michael Weisman

Self - Contestant

Shanna Henderson

Self - Contestant

Abraham Lim

Self - Contestant

Nellie Veitenheimer

Self - Contestant

Charlie Lubeck

Self - Contestant

Mario Bonds

Self - Contestant

Tyler Ford

Self - Contestant

Dani Shay

Self - Contestant

Taryn Douglas

Self - Contestant

Maxfield Camp

Self - Contestant

Michael Davies

Producer