To answer the above question, the relevant sentence is: Gregory P. Finley II (born December 22, 1984) in Portland, Maine, is an American actor, best known for his role as Jack Pappas in the teenage drama series The Secret Life of the American Teenager as well as Drake in the series Star Crossed, iZombie and Girder in The Flash.
This justifies what answer for what question? Q & A:
Passage: Gregory P. Finley II (born December 22, 1984) in Portland, Maine, is an American actor, best known for his role as Jack Pappas in the teenage drama series The Secret Life of the American Teenager as well as Drake in the series Star Crossed, iZombie and Girder in The Flash.

Question: Based on this passage, who plays jack on secret life of the american teenager?
Gregory P. Finley II