Answer: mortimer

AnswerCrossword Clue
MORTIMER

First name of a radio blockhead.

MORTIMER

Radio character.

MORTIMER

... Snerd.

MORTIMER
Character in "King Henry IV."
MORTIMER
Earl of March
MORTIMEROne of Bergen's dummies
MORTIMEREdgar Bergen dummy ... Snerd
MORTIMER... Brewster, beleaguered nephew in "Arsenic and Old Lace"
MORTIMER... Brewster, "Arsenic and Old Lace" role
MORTIMERBergen's Snerd