Caroline Gilchrist Rhea is a Canadian actress and stand-up comedian, who is best known for portraying Hilda Spellman in the ABC series Sabrina the Teenage Witch, and for voicing Linda Flynn-Fletcher in the Disney animated series Phineas and Ferb.

Hollywood Squares is an American game show in which two contestants compete in a game of tic-tac-toe to win cash and prizes. The show piloted on NBC in 1965 and the regular series debuted in 1966 on the same network. The board for the game is a 3 × 3 vertical stack of open-faced cubes, each occupied by a celebrity seated at a desk and facing the contestants. The stars are asked questions by the host and the contestants judge the truth of their answers to gain squares in the right pattern to win the game.