acting classes tax deductible?

Answer 1

If this is just an acting class it probably does not fit the describtion for a Qualified Educational Institute per Publication 970

Eligible educational institution. An eligible educational institution is any college, university, vocational school, or other postsecondary educational institution eligible to participate in a student aid program administered by the Department of Education. It includes virtually all accredited public, nonprofit, and proprietary (privately owned profit-making) postsecondary institutions. The educational institution should be able to tell you if it is an eligible educational institution.

Certain educational institutions located outside the United States also participate in the U.S. Department of Education's Federal Student Aid (FSA) programs.

You would also have to pass other tests for any fees to be considered qualified educational expenses
See Pub 970
http://www.irs.gov/publications/p970/index.html

Answer 2

They might be eligible for education credits, if the school program is eligible for FAFSA student aid. Otherwise, no.

Answer 3

Probably not.