Welcome Back, Potter (Harry Potter and the Cursed Child - Parts I & II)

Welcome Back, Potter (Harry Potter and the Cursed Child - Parts I & II)

I hope Horshack is in this one.

OK, I don't care about Potter, so let me ramble a bit about Kotter.

Horshack - dead (2012, age 63)
Epstein - dead (2012, age 60)
Mrs Kotter - dead (2014, age 66)
Hotsy Totsy - long dead (2005, age 52)
Mr. Woodman - very long dead (1988, age 68)
Mr. Kotter - alive, age 71
Barbarino - alive, age 62
Washington - alive, age 62

Unfun facts:

In real life, Ron Palillo (Horshack) was not even a year younger than Marcia Strassman (Mrs Kotter).

Gabe Kaplan (Kotter) is now older than John Sylvester White (Woodman) was when he died.