Character from the eponymous Teletoon series who wears a yellow t-shirt, and does not need a comb in the morning

Do 1+2, say3 What Jennifer Aniston did when playing Rachel Green3 "Dynamic" pair3 Lion's hideout3 "___-ching!" (sound that a cashier hears)3 Tax professional (anagram of "cap"): Abbr.3 ___ Simpson, lead character of "The Simpsons" who says "D'oh!" and might not need shampoo as years pass5 Singer of "Hello" and "Skyfall"5