Sebastian Arcelus (born November 5, 1976) is an American voice actor who works on the properties of 4Kids Entertainment and NYAV Post. He has also made a career in theatre, being featured in Rent on Broadway, first as Roger and then as a swing, covering the male ensemble roles as well as Mark and Roger. He also starred as Jan in the original cast of the unsuccessful musical Good Vibrations.
Arcelus played the role of Fiyero on the first national tour of Wicked from January 3 until October 3, 2006. He then reprised the role in the Broadway production of the musical from January 9 until December 16, 2007.
He starred as Bob Gaudio in the Broadway production of Jersey Boys from January 10, 2008 to January 11, 2009.
Arcelus starred in Happiness, a musical which ran Off-Broadway at Lincoln Center Theater's Mitzi E. Newhouse Theater for 14 weeks beginning on February 27, 2009.
Arcelus is resumed the role of Bob Gaudio in the Broadway production of Jersey Boys on July 14, 2009.
Sebastian will assume the role of Buddy in Elf The Musical for a limited engagement run from November 10, 2010, through January 2, 2011. Previews begin November 2, 2010.
Arcelus married his Wicked co-star Stephanie J. Block on October 25, 2007. Block had starred alongside him as Elphaba in Wicked both on the national tour and on Broadway.
Sebastian's grandmother was Princess Ekaterina Ioannovna of Russia, daughter of Prince Ioann Konstantinovich of Russia, and the last member of the Romanov family born before the Revolution. Princess Ekaterina died in 2007.
- Samurai Deeper Kyo - Hotaru
- Shaman King - Yoh Asakura / Zeke Asakura (Hao Asakura)
- Eureka Seven - Holland Novak (Teenager)
- Dinosaur King - Rex Ancient(Rex Owen)
- Yu-Gi-Oh! - Rex Raptor (Dinosaur Ryuzaki) (episodes 145-184)
- Shrine of the Morning Mist - Tadahiro Amatsu
- Ultimate Muscle - Road Rage / Additional Voices
- Winx Club (4Kids Entertainment edit) - Timmy/Palladium
- Pokemon: Destiny Deoxys - Rafe
- Pokémon Chronicles - Additional Voices
- Yu-Gi-Oh! GX - Marcel (Martin Kanou)
- Man of the People - Little G / Miscellaneous
- Animalia - Paul the Polar Bear
- Turtles Forever - 1987 Raphael
- Yu-Gi-Oh! 5D's - Lucciano
In 2004, Arcelus appeared in the Movie Musical Temptation, with Broadway stars Alice Ripley, Adam Pascal, Anika Noni Rose, and film actress Zoe Saldana.. among many others. 
Arcelus was featured on I Channel, an interactive "story told in snippets" of "a self-conscious young man who finds his life taken over by a video blog." He played I's brother, who frequently called or visited.
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