Your UW GPA and class rank are fine. Your senior course load seems ridiculous (5 APs + computer languages + speech and debate + varsity theater). Your ACT of 31 is on the low end of Stanford 25-75% range. Raising that score plus adding some strong subject tests wouldn’t hurt. What were your AP scores?
A few questions/thoughts:
- Are you applying SCEA or RD?
- What is your direction? Theatre is obviously your focus, but CS and speech and debate also seem like significant activities. How do these fit together?
- Have you contacted Stanford's Theater and Performance Studies department? Are you going to submit an arts supplement? Do you have someone from whom you can get a supplemental recommendation speaking to your theatrical ability and focus? I believe that Stanford requires that students submitting an arts supplement have a letter from an arts instructor:
http://taps.stanford.edu/ba.html
Do you have a website, list of performances and significant theatre activities, or theatrical resume? Again, I believe that Stanford requires that students include a resume their theatre experience. You should also note that the SCEA deadline for an arts supplement is October 15, and for RD it is December 1.
- Stanford has a big effort in place to encourage interdisciplinary studies between CS and the humanities, with a trial joint major program called CS + X:
https://undergrad.stanford.edu/academic-planning/majors-minors/joint-majors-csx
There are CS + arts and CS + music joint programs, but I don’t know if anyone has ever done a joint CS + Theater and Performance Studies joint major. It could be something interesting to discuss on your application or in interviews.
- For a good example of someone who managed to take a strong theatre arts background to Harvard, look at Mark Mauriello's website:
See also:
http://www.thecrimson.com/article/2014/10/9/a-day-in-the-life-mark-mauriello/
Another interesting person is Kari Barclay, an A.B. Duke Scholar at Duke who is combining interests in the theater arts with public policy and social activism:
http://abduke.duke.edu/community/members/k-barclay/profile/
https://today.duke.edu/2015/05/kari-barclay-2015-american-humanity-action-fellow#video
https://■■■■■■■■■■■■■■■■/pub/kari-barclay/98/b66/717
These are 2 people who have taken theatre performance to a very high academic level. You might want to contact them and ask for advice about how to market your theatre background for application purposes.
The good news is that you have something distinctive in your background that you can make stand out from the crowd of qualified applicants.
Good luck!