Marion Ross and Henry Winkler to Guest Star on NBC's Up All Night
Winkler will play the feather of talk show producer Ava (played by Maya Rudolph), while Ross will play the grandmother of Chris (Will Arnett), and who is not fond of her grandson's wife (played by Christina Applegate).
The actors appeared together on the hit ABC sitcom Happy Days. Winkler's stage credits include The Dinner Party and 42 Seconds to Broadway. Ross' stage credits include The Last Romance and Lost in Yonkers.