According to a Vanity Fair Oral History of “Zoolander”, Duchovny learned about the film when he saw his wife at the time, Téa Leoni, reading it. “I saw it in the house and I said, ‘What is this?’ She said it was a Ben movie. And I thought, ‘Why don’t I do it? I should be in’.”
Stiller was delighted to offer Duchovny a part, and let him choose between the three. Duchovny chose JP Prewitt, the hand model he believes will be the most fun. He had a vision for the character. “I think I said I wanted to go bald or go bald. And we set up this whole wig. I think I’m wearing padding, too. And I realized that the straighter I am, the better I am. the more humorous. So I just committed to reality.”
Duchovny’s Prewitt, whose chubby appearance contrasts with the rest of the beautiful models in the film, is a highlight of the film, and is featured in some hilarious exposures with Stiller. For Duchovny, it was a big change of pace from the movie “The X-Files”. He talks about the last time he made the mistake of reading his lengthy monologue, Stiller and Christine Taylor burst into laughter, shouting “Finally!”
“Zoolander” is a box office success, even earning a sequel 15 years later. “Zoolander 2” was an unwelcome box office failure, which Ben Stiller accepted. Not every sequel can recapture the magic of the original. However, to make a comedy so successful that David Duchovny asked to be in it, one has to be proud.
https://www.slashfilm.com/1011338/david-duchovny-knew-just-what-kind-of-character-his-zoolander-cameo-needed-to-be/ David Duchovny Knew what kind of character his Zoolander Cameo needed