no
He can refer to himself as not having a tool.
Fife Symington has: Played Himself - Arizona Governor in "Larry King Live" in 1985. Played Himself - Gov. (R) Arizona 1991 - 1997 in "Out of the Blue" in 2002. Played Himself - Former Arizona Governor in "Phoenix Lights Documentary" in 2005. Played Himself - Former Governor of Arizona in "I Know What I Saw" in 2009. Played Himself - Former Governor of Arizona in "Secret Access: UFOs on the Record" in 2011.
Yes
As of the end of the year 2011, former emergency doctor and former Oregon governor John Kitzhaber is our present governor.
I believe it is Julius Caesar
You should describe a former governor as "...the former governor of (state)", but when introducing a former governor you should say "...to introduce Governor XXX." Like a former judge, general, president, senator, or other public official, a governor retains the title after leaving the office.
You would typically address a former governor who is also a doctor as "Dr. [Last Name]" in formal situations, acknowledging their medical credentials. In a more casual setting, you might refer to them as "Governor [Last Name]" to honor their previous role. If you are uncertain about their preference, it is always polite to ask how they would like to be addressed.
Epifanio de los santos a.k.a. EDSA was the former governor of Nueva Ecija
Mike Pence, former governor of Indiana.
no.
George Ryan.
Yes, you still address them as Governor, even if they aren't at the time.