Idina Menzel aka Elphaba from Wicked (April Rhoades is played by her costar from Wicked, Kristin Chenoweth)
Idina Menzel was Rachels mom, Shelby Corcoran
Mark Salling plays Noah in Glee
Kevin Corcoran
The actor who plays Blaine in Glee is Darren Criss.
Shelby Corcoran.
Idina Menzel aka Elphaba from Wicked (April Rhoades is played by her costar from Wicked, Kristin Chenoweth)
Idina Menzel was Rachels mom, Shelby Corcoran
Mark Salling plays Noah in Glee
Dianna Agron plays Quinn Fabray on Glee.
Amber Riley plays Mercedes Jones on Glee.
Kevin Corcoran
The actor who plays Blaine in Glee is Darren Criss.
Blaine's brother is Cooper Anderson, and Rachel's adoptive sister is Beth Corcoran.
There is no character named Leo on Glee.
Kevin McHale is the one in Glee
There is no character called Monique in Glee.