Michelle Trachtenberg is being remembered for the constructive vitality she dropped at set by lots of the stars she labored with over time … after her dying was introduced right this moment.

Quite a few stars have taken to social media to indicate their love for the late actress, sharing tales from their instances working along with her.

Kenan Thompson posted a pic of the 2 from approach again within the day … calling her the primary Nickelodeon film star — in addition to one in every of his shut associates.

Alyson Hannigan — who appeared alongside Trachtenberg in quite a few episodes of “Buffy the Vampire Slayer” — shared an image of the 2 collectively and stated she exuded loving vitality at work.

Others added their very own tributes … together with Kim Cattrall, Snooki, Lele Pons, Matt King, Shane Dawson, Iris Apatow, Shawn Ashmore, Brandi Glanville and lots of extra bold-faced names.

An enormous takeaway from a big swath of the tributes on-line … many are thanking Michelle for being an integral a part of their childhoods.

Michelle was discovered unresponsive in her New York Metropolis condominium Wednesday … and, first responders pronounced her lifeless on the scene. A supply informed us Michelle had a liver transplant up to now 12 months — unclear if that performed a consider her tragic dying.

She was 39.