The National Equality March on Washington has been met with mixed reactions, but judging from the sudden groundswell of support from LGBT leaders and allies, the October event looks to be off to a good start.

Towleroad.com has an exclusive list of the 140 leaders and allies who have backed the march, which will take place October 10th and 11th. The march seeks equal protection in all matters governed by law in all 50 states.

Among the 140 new endorsers of the march are activists, strategists, and leaders in the fight for LGBT equality, including Neil Giuliano, Cleve Jones, David Mixner, Nicole Murray-Ramirez, Torie Osborn, and Judy Shepard.

Entertainment industry endorsements include Oscar-winning actress Charlize Theron, Oscar-winning producer Bruce Cohen, Oscar-winning screenwriter Dustin Lance Black, Emmy-winning actress Judith Light, Tony award winners Alan Cumming and Harvey Fierstein, and Mad Men's Bryan Batt.