In 1977, Frank costarred with Deborah Winters and Claude Akins in the television horror film, Tarantulas: The Deadly Cargo, directed by Stuart Hagmann.

In 1979, he appeared as Lester Hackett in four episodes in the CBS miniseries The Chisholms; when the production resumed in 1980, he was replaced in the role by Reid Smith.

In 1982, Frank portrayed independently wealthy Stanley Beck on the short lived series Filthy Rich, a comedic send-up of Dallas and Dynasty.

In 1983 Frank played astronaut Scott Carpenter in the movie version of Tom Wolfe's novel The Right Stuff.

: The Confederate States of America, a mockumentary based in an alternate timeline in which the Confederacy won the American Civil War.