Special Guest Stars Jesse L. Martin as Joe West Matt Letscher as Eobard Thawne Rick Cosnett as Dr. Malcolm Gilmore Victor Garber voices Professor Martin Stein Guest Stars Patrick Sabongui as David Singh John Wesley Shipp as Dr. Henry Allen Michelle Harrison as Nora Allen Co Starring Elodie Venece as Dr. Rachel Rosso JoJo Ahenkorah as Security Guard Charles Raahul Singh as Visitor #1 Nilo Ghajar as Visitor #2