Answer: pidgeon

AnswerCrossword Clue
PIDGEON

Garson's Mrs. Miniver costar

PIDGEON

Walter of "Funny Girl"

PIDGEON

Back-to-back Best Actor nominee of the 1940s

PIDGEON
He played Mr. Miniver.
PIDGEON
An actor named Walter.
PIDGEON"Executive Suite" actor.
PIDGEONThe "Happiest Millionaire."
PIDGEONGarson co-star