David Boreanaz

Playing the role of Angelus on Angel: Jäger der Finsternis (1999) for February sweeps in 2003, Boreanaz ad libbed a lot of his lines. Co-star Amy Acker said in an interview, "I think it's great; he has so much fun playing that character. It's a lot of improvisation and taking risks. You never know what he's going to say; it changes from take to take.".

[on missing Sarah Michelle Gellar] "I loved working with Sarah... Sarah is great. A great person. Without Sarah I wouldn't be standing here right now. So I owe her a lot."