Try the online directory, which has email addresses and phone numbers for individuals (the Hayward campus telephone operator is 510-885-3000 and the Concord campus operator is 925-602-6700) or, if you don't know the name of the person, try the Campus Contacts page.
A Faculty Expertise Directory is available here
Classes, Grading, Schedules, and Rooms
Disruptive behavior is defined as "behavior that impairs, interferes with or obstructs the mission, purpose, order, academic atmosphere, operation, process and functions of the University is considered disruptive behavior." Establishing an inclusive learning community in your classroom and creating communication guidelines with your students may reduce the possibility of disruptive behavior emerging. Information is available at Dealing with Disruptive Student Behavior.
Cheating? Contact Student Judicial Affairs or your department chairperson. Information about the judicial process is at Student Conduct Rights.
Saying I am being unfair (either in grading or in teaching the class)? Refer the student to the Department Chairperson.