(written from a Production point of view)
Prior to his Star Trek: Voyager appearance, Sparks had guest roles in the television series JAG (1997, with Paul Collins and Dana Sparks) and Profiler (1999, with Daphne Ashbrook, Lawrence Pressman, and Lawrence Monoson) and a supporting role in the romantic comedy Blast From the Past (1999, with Scott Thomson, Richard Gilbert-Hill, Annie O'Donnell, and Stephen Blackehart).
Sparks also portrayed supporting roles in the drama The Road Home (2003) and the adventure film The Celestine Prophecy (2006, with Castulo Guerra) and appeared in the television series Scrubs. He worked in the loop group for films such as the television movie Geppetto (2000, with Brent Spiner, Rene Auberjonois, Anthony Crivello, Anton Yelchin, Kane Hodder, Noby Arden, and Mark Chadwick), the animated The Road to El Dorado (2000, with voice actor Frank Welker and produced by Brooke Breton), and the Miramax film The Defender.
More recently he was featured in an episode of the comedy series The New Adventures of Old Christine (2009).