The fact that I missed that he was already mentioned automatically disqualifies me for a DQ. In fact, such a boneheaded move should disqualify me from the thread!
Did you play 3rd base for the Dodgers?
Don’t be so hard on yourself. 
Stick around!
Kid_A, no, I am not (Harry) Arthur “Cookie” Lavagetto.
Darryl, the answer is no (for your indirect question, I was thinking of either Dr. Jekyll and Mr. Hyde or The Hollow Man).
AL is
- not American
- not alive
- was alive in the 20th century
- male
- appeared on TV
- not an entertainer
- Caucasian
- not an athlete
OK…I was actually thinking of Andy Laroche.
Adam’s brother.
Were you a host of an extremely long running radio/televison show?
No, I’m not Art Linkletter.
Were you the first man to walk in space?
Did a family friend ever tell a story to you and your sisters in a rowboat?
Did you hang out with Sissy, Missy, and Justice?
Were you lead singer of a band who “broke out” at Woodstock?
No, I’m not Alexei Leonov, Alice Liddell, or Ali Larter.
You got me. Ask a DQ.
Were you lead singer of a band who “broke out” at Woodstock?
Alvin Lee of Ten Years After with the song “I’m Going Home”.
DQ: Are you a European?
Yes.
AL is
- not American
- not alive
- was alive in the 20th century
- male
- appeared on TV
- not an entertainer
- Caucasian
- not an athlete
- European
Are you the William Henry Harrison of popes?
You got me!
I’m Albino Luciani, better known as Pope John Paul I (1912-1978), whose pontificate lasted just 33 days in late 1978.
Well done, Darryl Lict!
HA! I had an inkling that I might be right. John Paul I satisfied all the DQ criteria plus he had all the desirable demographics for a difficult Botticelli candidate. An obscure first name (what the hell, was he that white when he was born?) plus a real name that nobody knows.