David Umansky is the professional pseudonym of Derek Stephen Prince, a prominent American voice actor known for his extensive work in English-language dubs of anime, Western animation, and video games. Born on February 5, 1969, Prince has been active in the voice acting industry since the mid-1990s and has used the alias David Umansky for a significant portion of his credited roles, particularly earlier in his career.

Under the name David Umansky, he has provided voices for a number of anime series. In the Fushigi Yugi franchise, he is credited as the voice of Keisuke Yuuki in the original video animation Fushigi Yugi: Eikoden. He also voiced the role of Dr. Gaia, a minor antagonist and creator of the Mythos cyborgs, in the 2001 anime series Cyborg 009: The Cyborg Soldier. His other anime credits using this alias include the role of Adolpho in the English version of the animated project Sins of the Flesh. Beyond these specific titles, Umansky's voice can be heard in numerous other roles in the Cyborg 009 series, lending his voice to various secondary and minor characters such as Kain, Achilles, and multiple background roles across the series' run.

While David Umansky is a credited name, it is synonymous with the career of Derek Stephen Prince. Outside of the credits using the Umansky alias, Prince is widely recognized for many other high-profile anime roles, including Ken Ichijouji in Digimon Adventure 02, Uryu Ishida in Bleach, Keitaro Urashima in Love Hina, and Shino Aburame in Naruto. His work also extensively covers voice roles for live-action projects, such as the character Elgar in the Power Rangers franchise, for which he was also credited as David Umansky. The use of this pseudonym represents a notable chapter within a longer, multifaceted career in the voice acting industry.