I'm sorry, but I couldn't find any information on an individual named Greg Helffy. It's possible he is not a public figure or that the information is not widely available. If you have more context or details, I might be able to assist you better.
Greg Morris died on August 27, 1996 at the age of 62.
Niall's older brother Greg Horan is 23 years old.
In "Old School," Greg Heffley is in middle school, which typically places him around 12 to 13 years old. The series does not specify his exact age in this book, but he generally remains consistent with this age range throughout the Diary of a Wimpy Kid series.
Greg Horos is 6' 3".
Greg Parves is 173 cm.
Greg Maddux was born on April 14, 1966 in San Angelo, TX. As of 2008 (two days ago) Greg is 42 years of age.
Greg Abbot was never a U.S. president.
greg churchouse is 26 years of age!
Greg Giraldo died on September 29, 2010 at the age of 44.
Greg Moore died on October 31, 1999 at the age of 24.
NeNe Leakes is no longer married. She divorced Greg in 2011, but he is 58.
Greg Moore died on October 31, 1999 at the age of 24.
23 Years Old
Greg Morris died on August 27, 1996 at the age of 62.
Greg Giraldo died on September 29, 2010 at the age of 44.
No, only a brother, Greg, a filmmaker, age 29.
Vanessa Hudgens' father Greg Hudgens was born June 22, 1950 and died at the age of 65 on January 30, 2016.