Larry Cedar
​From Wikipedia, the free encyclopedia.  Larry Cedar (born March 6, 1955) is an American actor and a voice actor best known as one of the players of the highly-acclaimed Children's Television Workshop mathematics show, Square One TV on PBS from 1987 to 1994. Cedar is also known for playing "Leon", the opium addicted thief and faro dealer in the internationally acclaimed HBO series, Deadwood.
Filmography
Grey's Anatomy
NCIS
Frasier
House
Mom
Community
Chuck
Stargate SG-1
Boston Legal
Two and a Half Men
Young Sheldon
American Horror Story
Star Trek: Voyager
Charmed
Without a Trace
The Closer
Mad Men
Gilmore Girls
Star Trek: Deep Space Nine
Ellen
We Bare Bears
The Shield
Strong Medicine
Star Trek: Enterprise
M*A*S*H
21 Jump Street
Ben 10
Samurai Jack
Boston Public
Batman Beyond