So which letter is in lowercase?

https://www.youtube.com/watch?v=1FzdrPRmCLQ

It was not a joke, it was a reference (to a joke made by Douglas Adams).

1st row, 3rd is Vinnie Jones, I know him from Snatch and Eurotrip.
2nd row, 2nd is David Morse, I know him from Green Mile and Twelve Monkeys.
3rd row, 1st is Paul Giamatti, I know him from Cold Souls and Lady in the Water.
3rd row, 3rd is Ciaran Hinds, I know him from In Bruges and Game of Thrones.
4th row, 2nd is Peter Stormare, I know him from Constantine and Fargo.

Rest of them, I don't even know who they are. Are they even actors or random people?

This is a repost. I'm to lazy to search for it, though.

Damn HLers, they ruined HL

Yes. I wanted to say that, but you already said it, so I wrote this comment instead.

Simpsons did it...

I thought of listing that too, but I figured it was obvious from the context.

I get the joke, but do you know what the word "completely" means? Depending on how close she would be next to a detonating grenade, the heat would still cause burns, the blast would still cause injuries, and blood loss afterwards. She could die of smoke inhalation if she were in closed space.