Biography
Daniel Davis (born November 26, 1945) is an American stage, screen, and television actor best known for portraying Niles the butler on the popular sitcom The Nanny, and for his two guest appearances as Professor Moriarty on Star Trek: The Next Generation, affecting an upper class English accent for both roles. He also voices the intelligent Cro Magnon, Longhair from the Longhair and Doubledome cartoon shorts from Cartoon Network's Big Pick.
Filmography
Cast Credits

Elsbeth
Character: Dr. Yablonski
TV • 2024

Stars in the House
Character: Self
TV • 2020

Star Trek: Picard
Character: Professor James Moriarty
TV • 2020

New Amsterdam
Character: Vic Wallace
TV • 2018

The Good Fight
Character: Professor Harrison
TV • 2017

Gotham
Character: Jacob Skolimski
TV • 2014

The Blacklist
Character: Baldur Magnusson
TV • 2013

Elementary
Character: Antoine LaGrange
TV • 2012

The Fran Drescher Show
Character:
TV • 2010

The Prestige
Character: Judge
MOVIE • 2006

Ugly Betty
Character: Dr. Morgan Remus
TV • 2006

The Nanny Reunion: A Nosh to Remember
Character:
MOVIE • 2004
Longhair and Doubledome: Good Wheel Hunting
Character: Longhair (voice)
MOVIE • 2000

The Practice
Character: Judge Barton Wolfe
TV • 1997

Remember WENN
Character: Desmond Quist
TV • 1996

Chicago Hope
Character:
TV • 1994

Duckman
Character: Rodney (voice)
TV • 1994

Intimate Portrait
Character: Niles (archive footage)
TV • 1993

The Nanny
Character: Niles
TV • 1993

Frasier
Character: Dr. Shafer
TV • 1993