Photo of Leonard Nimoy as Fringe’s William Bell

This image of Leonard Nimoy as the mysterious William Bell on the season finale of Fringe, turned up online at TV Addict.

Bell is the founder of Massive Dynamic and former partner of Walter Bishop (John Noble). Nimoy’s Bell appears in the season finale on May 12th, and then returns in this fall for an extended story arc, according to a report by EW.

Nimoy will also appear in Star Trek, which Fringe co-creators Roberto Orci and Alex Kurtzman wrote, and fellow Fringe co-creator J.J. Abrams directs. Reports also say the iconic sci-fi legend may also voice the Fallen in this summer’s Transformers: Revenge of the Fallen, which Orci and Kurtzman also penned.