How old is Mark Gruner? When is Mark Gruner's birthday? Where is Mark Gruner born? Where did Mark Gruner grow up from? What's Mark Gruner's age?

Mark Gruner Born: 1958 (age 65years), Fort Leonard Wood, MO

Mark Gruner Sibling: David Gruner

"The Brady Bunch" The Not-So-Ugly Duckling (TV Episode 1970) - Mark Gruner as Clark Tyson - IMDb.