Guest Stars Bruce Boxleitner as President Phillip Baker David Ajala as Manchester Black Sarah Smyth as Lydia Lockwood Roxy Wood as Yvette Co Starring Jaymee Mak as Mackenzie Timothy Lyle as Frank Jill Morrison as Second Local Tawny West as Reporter Josh Chambers as First Local Jeffrey Chivers as COL #1 Uncredited LaMonica Garrett as Mar Novu / The Monitor John Wesley Shipp as Barry Allen / The Flash (Earth-90)