Early TV and film roles (1960s and 1970s)

In 1968, Selby joined the cast of the TV series Dark Shadows as a werewolf Quentin Collins. After the series' cancellation in 1971, Selby played Quentin Collins in Night of Dark Shadows, the second feature film based on the show, released later the same year. He reprised the role from the series for a series of Dark Shadows audio dramas from Big Finish Productions, beginning in 2006.

In 1972, Selby co-starred with Barbra Streisand in the movie Up the Sandbox. He continued to appear in a number of film and television roles during the 1970s, including U-Turn (1973), The Super Cops (1974) and Rich Kids (1979), and episodes of The Waltons (1974), Police Woman (1975), and Kojak (1976). He was part of the cast in the Emmy Award-winning miniseries Washington: Behind Closed Doors (1977).

1980s

Selby was nominated for a Golden Raspberry Award for Worst Supporting Actor for his role in the 1980 film Raise the Titanic, which was met with a negative reception from critics and audiences along with poor box-office takings.

In 1981, Selby played the villainous Michael Tyrone in the final season of the prime-time serial Flamingo Road. After its cancellation in 1982, he joined the cast of Falcon Crest as Richard Channing, the illegitimate son of Jacqueline Perrault (Lana Turner) with Angela Channing's husband Douglas Channing. Originally considered an antagonist, Richard gradually became more of a protagonist, and by the final season, he was the central character of the show (in part due to the health-related absence of Wyman). In all, Selby appeared in 209 episodes of the series.

Later career

Selby continued in numerous film and TV roles during the 1990s and 2000s, including Dying Young (1991), White Squall (1996) and Surviving Christmas (2004), and episodes of series such as Cold Case (2007) and Mad Men (2009).

To mark the 200th anniversary of Abraham Lincoln's birthday in 2009, Selby appeared onstage with Barack Obama and portrayed Lincoln in a scene from the play The Heavens Are Hung in Black at the reopening of Ford's Theatre.^{[citation needed]} Selby had also played Abraham Lincoln in a 1998 episode of the series Touched by an Angel, titled "Beautiful Dreamer".

Selby made an appearance in the 2012 film adaptation of Dark Shadows, one of four cast members from the original series to feature in the movie. The same year, he co-starred in Batman: The Dark Knight Returns, a two-part direct-to-video animated film adaptation of the 1986 graphic novel The Dark Knight Returns, portraying Commissioner James Gordon.

In 2017, Selby had a recurring role in the drama Legion.

Films

Television