The Call Me By Your Name star had suggested that posting a picture with Stan Lee was a self-centered way to memorialize the late Marvel Comics icon

Jeffrey Dean Morgan is taking issue with Armie Hammer‘s critique of celebrity tributes to Stan Lee.

After Lee, who was behind Marvel Comics’ iconic superheroes, died at age 95, Hammer tweeted Monday in a since-deleted post, “So touched by all of the celebrities posting pictures of themselves with Stan Lee… no better way to commemorate an absolute legend than putting up a picture of yourself.”

“If Stan impacted your life (ie. All of our lives) with his work, post his work that touched you the most,” the Call Me By Your Name star continued in a reply to a fan that is still online. “Posting a selfie makes his death about you and how cool you felt taking a picture with him.”

In a tweet that’s since been deleted, the Walking Dead actor criticized Hammer’s posts. “Looks like you found a way to use others ways of mourning and their memories to draw some attention to yourself,” Morgan wrote, according to Entertainment Tonight Canada and “You sound like a real a—hat.”

Reps for Hammer and Morgan did not immediately respond to PEOPLE’s requests for comment.

Much of Hollywood — including Hugh Jackman, Robert Downey Jr., Larry King, Mark Hammill, Jessica Alba, Tom Holland, Chris Pratt, Zoe Saldana, Dwayne Johnson, Kevin Smith, Kat Dennings, Halle Berry and Jaimie Alexander — participated in the trend that Hammer noticed.

Credit: Jamie McCarthy/Getty Images; Vincent Sandoval/Getty Images

Some Twitter users also disagreed with Hammer’s view. “They… worked with him…?” one person wrote.

“Me…. too…?” Hammer replied.

A person asked, “what else u supposed to do when someone dies armie.”

“If your answer is ‘post a selfie’ then I think we need a cultural revamp across the board,” the On the Basis of Sex leading man answered.

Hammer did like Mark Ruffalo‘s tribute, which showed Lee next to the Hulk. “This ones not one with Mark in it…happy?” a person wrote.

“Actually, yes. This was an example that stood out and made me think his post was actually about Stan,” he replied.