The Deadpool on-screen character initially met Connor and his family through the Make-A-Wish establishment three years back and the pair turned out to be dear companions before he passed on recently.
Paying tribute to his "extraordinary companion", Mr Reynolds composed on Facebook: "For three straight years, old buddy, Connor McGrath drop-kicked tumor... Not certain how... Possibly the tumor swindled... In any case, the battle arrived at an end two evenings prior."
He included: "He went much too soon and it's difficult to accommodate. Connor was an extraordinary companion, an incredible child, and a light to the general population sufficiently fortunate to know him."
Perused his whole post:
Mr Reynolds likewise uncovered that Connor was the principal individual to see Deadpool after he astounded him with a harsh cut of the motion picture before its discharge and the on-screen character trusts that his late companion exemplified the majority of the best parts of the comic book character.