Jason Alexander
64 years old
Jay Scott Greenspan, better known by his professional name of Jason Alexander, is an American actor, writer, comedian, television director and producer, and singer. He is best known for his role as...
See Profile
Nickelodeon Cinematic Tooniverse
Shared Movie Universe
by Nickelodeon
Your favorite Nicktoons Unite on the big screen through a series of various films.
See Story
Join the Conversation
0 comments on Jason Alexander as Cosmo Cosma in Nickelodeon Cinematic Tooniverse