Answer the following clues to find a word (or 2 in the case of the 3rd) and find the common theme connecting the answers:
Jack of all
My prefix makes you miss school
While my infix is one less of a spice
And my suffix is the end of your journey
When you say see you later, alligator!
As soon as someone is identified as an ______, they no longer are.
Use action and hold on
Barney wait-for-it Stinson
20-21-13-2-12-5 + 23-5-5-4
3 is a quote by George Carlin
Note: Heights of the images don't matter. Otherwise the images are fine. I'll keep trying to see if I can fix the third image. Here is a link to the third image (and that is exactly how I want the image to be): https://i.stack.imgur.com/8GcXt.jpg