“[He] was a short, pudgy comedian who found his greatest success from 1957 to 1968, when he teamed with [Steve] Rossi, a tall, handsome singer who set up his partner’s vaudeville-style, groan-worthy gags. … With the bulging eyes and innocence of a Harpo Marx-like fool, Mr. Allen ambled onstage with his trademark catchphrase, ‘Hello dere,’ and quickly waded into comic quicksand.”