William Stanford Davis
William Stanford Davis (born August 7, 1951) is an American actor. He is best known for his role as school custodian Mr. Johnson on the ABC sitcom Abbott Elementary (2021–present).
Known For
The Big Bang Theory
79%
Dry Cleaner
2007
Bones
82%
Floyd Barber
2005
Shameless
82%
Conrad
2011
Desperate Housewives
79%
William
2004
Snowpiercer
73%
Mr. Riggs
2020
CSI: Crime Scene Investigation
76%
Mechanic
2000
It's Always Sunny in Philadelphia
83%
Mr. Johnson
2005
Chicago Med
83%
Ed Brennan
2015
Undercard
87%
Baba T
2026
Diary of a Wimpy Kid: The Last Straw
67%
Troopmaster Barrett (voice)
2025
Side Quest
57%
Earl
2025
Sherri
26%
Self - Guest
2022
The Jennifer Hudson Show
56%
Self
2022
Abbott Elementary
75%
Mr. Johnson
2021
A Holiday Chance
85%
Bernie
2021
Perry Mason
72%
Daniel Madison
2020
Snowpiercer
73%
Mr. Riggs
2020
Truth Be Told
70%
Agathia
2019
Adopt a Highway
67%
Hatty
2019
Holly Day
63%
Thaddeus
2018
Light as a Feather
76%
Old Man
2018
Dead Women Walking
Warden
2018
Please Stand By
68%
Creed (uncredited)
2018
Handsome: A Netflix Mystery Movie
53%
Lester
2017
A Winter Rose
30%
Stage Manager
2016
Cardboard Boxer
64%
Jazzy
2016
So B. It
66%
Man at Cab Co.
2016
You Can Never Really Know Someone
45%
Man 2 (Bible Study Member)
2016
When Duty Calls
65%
Clyde Pierce
2015
Chicago Med
83%
Ed Brennan
2015
Guns for Hire
47%
Liquor Store Clerk
2015
L.A. Superheroes
50%
Hal
2013
Ray Donovan
75%
Potato Pie
2013
Love, Gloria
Kenny
2012
The Finder
71%
Earl
2012
Harry's Law
75%
Kareem Anderson
2011