Explained: Richard Riehle, dependable TV and film character actor who was in 'Glory and 'Office Space,' dies

Richard Riehle, a prolific character actor in TV and film, has died at 78

Character actor

An actor known for playing supporting, often distinctive roles rather than leading parts

Quartermaster

A military officer responsible for supplies and equipment, a role Riehle played in 'Glory'

MFA

Master of Fine Arts, a graduate degree in a creative field

Air marshal

A law enforcement officer who works undercover on commercial flights to prevent crime or terrorism