Mrs. Henderson

Mrs. Henderson is a professor at Evil Spy School. She teaches math, science, and bomb construction. Ben describes her as a "doting, motherly woman." He also states that she often cooks dinner for the Evil Spy School students. She may have been killed in the missile blast at the end of Evil Spy School.

While at Evil Spy School, Ben notes how Mrs. Henderson tries to spice up math problems with fake scenarios about blowing up bridges with missles. Later in Evil Spy School, Ben realizes his calculations for her class were meant to blow up actual bridges and tunnels as part of SPYDER's evil plot.