In every episode of The Glee Project, a member of the Glee cast mentors the contenders for the theme of that episode. The mentors watch the contenders perform their homework assignment for that week and then judge them based on their performances, and how well they portrayed the theme of the week. The winner of the homework assignment will get some time with the mentor where they will be given advice on how they can improve their performance in the music video. When entering the choir room, mentors bring an item that represents their character, this happening more often on season two than on season one.
|Individuality||Slushie||Darren Criss (Blaine Anderson)||Matheus|
|Theatricality||N/A||Idina Menzel (Shelby Corocan)||Alex|
|Vulnerability||Whistle||Dot-Marie Jones (Shannon Beiste)||Matheus|
|Dance-ability||N/A||Harry Shum Jr. (Mike Chang)||Samuel|
|Pairability||Slushie||Darren Criss (Blaine Anderson)||Marissa|
|Tenacity||Football||Max Adler (Dave Karofsky)||Marissa|
|Sexuality||N/A||Mark Salling (Noah "Puck" Puckerman) and Ashley Fink (Lauren Zizes)||Samuel|
|Believability||Tina's Glove||Jenna Ushkowitz (Tina Cohen-Chang)||Hannah|
|Generosity||Glasses||Kevin McHale (Artie Abrams)||Lindsay|
|Glee-ality||N/A||Ryan Murphy (Creator of Glee)||No Winner|
- In Pairability, it's the first time where a cast member mentors more than once.
- Marissa won the homework assignment and chose Samuel as her partner. This led to the two of them being mentored together.
- Sexuality is the first time where there are two mentors.
- Believability is the first time one of the original six mentored.
- In Generosity, Lindsay was given the magic comb that Artie gave Brittany in Glee episode Special Education.
- Glee-ality is the first time where the mentor isn't part of the Glee cast.
- It's also the first time that the mentor doesn't pick a homework winner.
- Kevin also brought the magic comb.
- This is the first time that a mentor gives something to a contender.
|Individuality||Lea Michele (Rachel Berry)||Shanna||N/A|
|Dance-ability||Samuel Larsen (Joe Hart)||Abraham||Guitar|
|Vulnerability||Cory Monteith (Finn Hudson)||Nellie||Football Helmet|
|Sexuality||Naya Rivera (Santana Lopez)||Charlie||Pompoms|
|Adaptability||Kevin McHale (Artie Abrams)||Aylin||Glasses|
|Fearlessness||Jane Lynch (Sue Sylvester)||Lily Mae||Megaphone|
|Theatricality||Grant Gustin (Sebastian Smythe)||Ali||Dalton Academy's jacket|
|Tenacity||Amber Riley (Mercedes Jones)||Ali||Mercedes' Binder|
|Romanticality||Darren Criss (Blaine Anderson)||Blake||Lima Bean Coffee|
|Actability||Dianna Agron (Quinn Fabray)||Michael||Baby bag|
|Glee-ality||Chris Colfer (Kurt Hummel)||Everyone ||Campaign Button|
- Dance-ability was the first time a former TGP contender mentors.
- Adaptability was the first time somebody mentors in two different seasons.
- Romanticality was the first time somebody mentors three times.
- In the first season, most of the Glee cast didn't want to mentor the contenders but this changed in season 2.
- Darren Criss has mentored more times than anyone else.