Omid-Paul Eftekhari was born in Isfahan, Iran, in 1975 and grew up in Germany from 1980 onward. Before becoming a voice artist, he pursued a different career path, studying art history as his main subject at universities in Marburg and Münster. He then trained and worked as a stone sculptor and restorer for many years. His career as a speaker began in March 2017, following a period of professional training in various aspects of vocal performance, including audiobooks, advertising, and dubbing.

As a voice actor, Eftekhari has been primarily active in the German dubbing industry, lending his voice to characters in both films and television series. He is the German voice of the character Kenny in the 2019 anime series Cop Craft. His other notable roles in animated series include voicing the character Knut Dixgard in the anime Knight's Magic. His work in film animation includes the role of Yusuf in the 2019 animated feature Manou the Swift. He has also contributed to the dubbing of classic series, providing voices for two different characters in a 2017 German synchronization of the 1960s series Sherlock Holmes.

In addition to his work in anime and film dubbing, Omid-Paul Eftekhari has an extensive career as an audiobook and radio play narrator. He is known for narrating a wide range of genres, from thrillers and crime novels to children's classics and non-fiction. For example, he has narrated several volumes in Mark Dawson's John Milton and Atticus Priest thriller series. He has also narrated Lone Theils' crime novel 87 Seconds and Francis Durbridge's Paul Temple radio play The Marquis Case. His narration of Hugh Lofting's The Story of Doctor Dolittle, adapted for an audiobook, is another example of his work. His voice is also featured in documentaries, reports, and image films.