"My childhood dream was always to be on Broadway. I wanted to end up in TV and film. It's kind of flipped, and I'm not mad about it, but my childhood dream is Broadway and I want to end up there."
~ Grant Gustin
American actor, Grant Gustin is perhaps best known for his roles as Barry Allen / The Flash on the CW series The Flash, and for his role as Sebastian Smythe on the Fox series Glee.
IMDb lists Grant Gustin's height at a gustin' 6'0½" -- but from what we have seen of him -- we think that half an inch is rather unnecessary (He is clearly shorter than a 6-feet-1 inches Stephen Amell) -- so shave it off, please!
But even we have to admit that Grant Gustin gives the impression of tallness -- perhaps because of his slimness.
The height of Grant Gustin is
6" or 183 cm
| Grant Gustin with big beauties -- Nataliya Kuznetsova and Rene Campbell (both around 5'7") | 
For reference, here is the average human height around the world.
| Country | Male | Female | 
|---|---|---|
| Indonesia | 5'4" | 4'11" | 
| India | 5'5½" | 5'½" | 
| Mexico | 5'6½" | 5'1½" | 
| China | 5'6½" | 5'1½" | 
| Japan | 5'7½" | 5'2½" | 
| Brazil | 5'8" | 5'3" | 
| Russia | 5'9" | 5'3¾" | 
| France | 5'9" | 5'3¾" | 
| United States | 5'9¼" | 5'4" | 
| United Kingdom | 5'9½" | 5'4¼" | 
| Canada | 5'10" | 5'4½" | 
| Australia | 5'10" | 5'4½" | 
| Germany | 5'10½" | 5'5" | 
| Netherlands | 5'11½" | 5'6" | 
| Dinka people of South Sudan | 6" | 5'7" | 
Data collected more or less from Wikipedia and some other sources. Expect a slight discrepancy from real life. A more detailed chart can be found here.
"I was 'gay-bashed' when I was in school even though, you know, I'm not... I'm a straight guy that just happens to be what I do. So, it's easily relatable to me. It was awful. It's a hard time in a kid's life."
~ Grant Gustin