The 'Anger Management' actor was moved by the plight of Teagan Marti, 15, who suffered brain, spine, pelvis and internal injuries in July 2010 when she plummeted 100 feet from a Wisconsin amusement park ride and chipped in to pay for the dog who will turn on lights, pick up objects and be her constant companion.
After a friend of the family contacted Charlie through his godfather, Charlie said: “I like to pay it forward. People come into your orbit for a reason. You don't always know what that is ahead of time, but if I ignore these requests then I don't have any opportunity to see where these things lead us, or lead me."
However, he does want some input on the Golden Retriever's name, and joked: "I think they should name the dog Charlie."
Teagan's mother Julie – who said the family has encountered frequent financial woes in the years since the accident after insurance for the teenager's therapy ran out - praised the actor for his generosity and revealed she broke down in tears when she heard about the donation.
She said: "I'm in such disbelief. I was crying. ... What a guy. What a guy."