Casey was a record-breaking hurdler for Bowling Green State University[3] and helped the 1959 football team win a small college national championship.

From there he moved between performances on television and the big screen such as playing team captain for the Chicago Bears in the TV film Brian's Song.

In 1980, he played Major Jeff Spender in the television mini-series The Martian Chronicles, based on the novel by Ray Bradbury.

He appeared in Revenge of the Nerds and had a comedic role as Colonel Rhombus in the John Landis film Spies Like Us.

Also during his career, he worked with such well-known directors as Martin Scorsese in his 1972 film Boxcar Bertha and appeared on such television series as The Streets of San Francisco.

He played a version of himself, and other football players turned actors, in Keenen Ivory Wayans's 1988 comedic film I'm Gonna Git You Sucka.

[12] He played high school history teacher Mr. Ryan, in Bill & Ted's Excellent Adventure, released in 1989.