From his "Star Trek" castmates like William Shatner and George Takei to the cast of "The Big Bang Theory," seemingly everyone in Hollywood is mourning Leonard Nimoy today. Here's a roundup of tributes:

A former contributor to sites including MTV's The Backlot and Bloody-Disgusting, Chris Eggertsen worked in film development before indulging his love of pop culture writing full time. He specializes in horror, the intersection of social issues and entertainment and Howard Stern. He's on Twitter @HitFixChris.