Barry Allen won't be the only person missing from The Flash when the show returns for its fourth season this fall. According to Entertainment Weekly, Tom Felton will not return as Julian Albert when Season 4 picks up. At the time of writing, Felton has not signed on to appear in Season 4.

Julian had a rather contentious relationship with Team Flash over the course of Season 3, but he was still a part of the group when the season ended. He started out as Barry's annoying labmate before it was revealed he was Savitar's acolyte Doctor Alchemy. However, Julian was unaware of his role in Savitar's scheme; he blacked out when he became Doctor Alchemy, and so he was not responsible for his actions. Team Flash was able to rescue him from himself by discarding the Philosopher's Stone in the Speed Force, which caused his Doctor Alchemy episodes to stop.

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As a full-fledged member of Team Flash, Julian leant his science skills to the team, going so far as to build a device that suppressed Caitlin Snow's metahuman powers. Over time, he became romantically involved with her. When she suffered a fatal injury, he made the difficult decision to remove her anti-metahuman device, which healed her but released Killer Frost. Nevertheless, he stuck around at STAR Labs and was present for the Season 3 finale, which made no indication that he would leave.

Felton was not in the The Flash Season 4 footage released at Comic-Con International in San Diego, nor was he present at the event this year. It is possible he could still return in some capacity before the end of the season, but that is not in the cards at this time.

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The Flash Season 4 will make up for Julian's absence in spades. Machete star Danny Trejo will appear on the show as a character known as Breacher, an interdimensional bounty hunter from Earth-15 who also happens to be Gypsy’s father. Joining Trejo for Season 4 are Neil Sandilands, who will play the metahuman criminal known as The Thinker, and Kim Engelbrecht, who will portray another DC villain, The Mechanic.

Starring Grant Gustin as the Scarlet Speedster, The Flash returns Tuesday, October 10 at 8 p.m. ET/PT on The CW. The series also stars Jesse L. Martin, Tom Cavanagh, Carlos Valdes, Candice Patton, Danielle Panabaker, Keiynan Lonsdale and more.