UnScramble this Word: u h r t t?

Questions

easy people: who was shot at the playhouse by john wilkes booth?

the tick: who, when problems arise, jumps into his cannon and says "fire me, boy"?

the tick: color of the ticks costume?

the tick: "yeast devil! back to the oven that _____ you!"?

the tick: who has the ability to change the color of his costume?