Tom Cavanagh almost goes full Gollum in The Flash season 4 gag reel clip

The Flash type TV Show network The CW genre Superhero Where to watch Close Streaming Options

Tom Cavanagh is clearly nothing like Earth-2’s Harrison Wells.

On The Flash, Harry (Cavanagh) is a stern (former) genius from a parallel Earth who isn’t the most playful guy in the world, but this exclusive clip from the CW superhero drama’s season 4 gag reel reveals that the actor who plays him isn’t afraid of indulging his goofier side from time to time. For example: In the clip, he breaks out his Gollum impression and starts yelling about his precious in a scene with Carlos Valdes.

(At one point in the gag reel, he even gives EW and our sibling publication PEOPLE a shoutout while teasing costar Hartley Sawyer).

In season 4, Cavanagh’s Harry was put through the ringer as his attempts to defeat the Thinker inadvertently caused him to lose his intelligence. However, that ended up not being the worst thing in the world because it pushed Harry to work on his emotional intelligence. At the end of the season, he decided to return to his own Earth and reconnect with his daughter. When EW spoke to executive producer Todd Helbing in May, he teased that Cavanagh would be back next season as a new version of Harrison Wells.

“I don’t want to tell you yet who he is, but when I was up there in Vancouver shooting for the finale, I talked to Tom for quite a bit about it. We landed on a pretty fun and interesting new Wells to join the team,” said Helbing.

Watch Cavanagh force Grant Gustin, Candice Patton, and more crack up in the clip above. The full season 4 gag reel will available digitally via season pass on Monday, July 2 and on the complete season 4 Blu-Ray and DVD set, which is out August 28. The Flash will return Tuesday, October 9 at 8 p.m. on The CW.