Live From New York: The Ultimate SNL Quiz

Which of these people was NOT an original cast member?

M&M stands for Mars and Murrie.
You can hear a blue whale's heartbeat from more than 2 miles away.
Beavers have transparent eyelids so they can see underwater.
In 1923, jockey Frank Hayes won a race at Belmont Park in New York despite being dead — he suffered a heart attack mid-race but his body stayed in the saddle until his horse crossed the line for a 20–1 outsider victory.