Prosen is a Heartiel. His symbol is a pear - which may reference to how he looks like a pear.

(Source: Pretty Cure Wiki)

Shortly after the fall of the Wicked King, the Queen of the Garden of Light lost her memory and came to Earth, in the form of a 12-year-old girl named Hikari Kujou. Now, she - with the help of Nagisa and Honoka, endowed with new costumes and powers - must find the 12 Heartiels, which hold the key to restoring the Queen's lost memories. For together once again, they are Pretty Cure. <br><br>
(Source: AniDB)

Chronology:  (2007) changed name to Michael Shitanda (四反田マイケル)  Skills & Abilities:  English  Non-anime roles:  Gojiro Kiryu (English and Japanese voices) in "Samurai Western" (VG)  Parfait in "Galaxy Angel II: Mugen Kairo no Kagi" (VG) (Japanese)  The Toyman in "Superman: The Animated Series" (Japanese)