The Save The Last Dance star joined the cast of the hit crime drama earlier this year (10) and bonded well with leading actor Hall.
But she has shot down rumours their friendship has become anything other than platonic following the news of his divorce from Carpenter, who plays his onscreen sister in the drama.
In a statement released to E!Online.com's Marc Malkin, Stiles says, "I have absolutely nothing to do with the split between Michael and Jennifer.
"We are good friends and enjoyed working together. This is a personal matter between them, and we should respect their privacy. Although I too prefer to keep my private life, private - I felt compelled to dispel the rumours I was somehow the cause for this matter."