The royal developed a close friendship with the actor, who died at 39 earlier this week ...

Following reports of Michelle Trachtenberg's death, the actor's co-stars started posting tributes to her. Here's what they've ...

Former Nickelodeon star Danny Tamberelli remembered his The Adventures of Pete & Pete costar Michelle Trachtenberg in an ...

"She was electricity," posted Gossip Girl co-star Blake Lively in a moving tribute, following the tragic news. "You knew when ...