Who said "I have an itchy trigger finger, and no remorse gland."?

This quote is attributed to Deadpool.

I have an itchy trigger finger, and no remorse gland. - Deadpool

"I have an itchy trigger finger, and no remorse gland."

Deadpool Power

"I'm just a girl in love with a boy asking him to love her back."

"Maximum effort!"

"You're so brave, and stupid. Mostly stupid."

"I'm gonna do to you what Limp Bizkit did to music in the late 90s."

"Power without control is just destruction."

"Power is not about control, it's about influence"

"The world doesn't need me to be the hero. It just needs me to be dangerous."

"The claws come out when I need them to."