He has appeared in several television commercials, including ads for Microsoft and FedEx. In 2011, he appeared in Lie to Me as Dr. Mitch Grandon, the head Doctor of a psychiatric institution in the Season 3 episode "Funhouse". In 2013, he appeared in Elementary as Danilo Gura, a custodian of a hospital in the Season 1 episode "Lesser Evils". Costabile appeared as Internal Affairs investigator Simon Boyd in the 2013 TV show Low Winter Sun. He appeared in Person of Interest in Season 1 as Samuel Gates. He appeared in The Blacklist in Season 2 as Dr. Linus Creel. He starred in the television series Dig.
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