Yesterday was Super Bowl Sunday, of course, but of perhaps bigger news — especially in Hollywood — was the sudden death of Oscar-winning actor Philip Seymour Hoffman.

Indeed the stars of our favorite medical drama, Grey's Anatomy, took to Twitter to express their shock and sadness over Philip's death and to memorialize his immense talent.

True, Philip never appeared on Grey's — but he did intersect with the stars of the show, appearing with Chandra Wilson (Miranda Bailey) in Strangers With Candy, with Sandra Oh (Cristina Yang) in Owning Mahowny, and with Gaius Charles (Shane Ross) in a production of Othello.

Here's what the Grey's cast said:

Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!