With Gunn, Lindsey and Spike are pinned down behind the couch, they realise the Wrath is in the basement, they kick the couch at the son. However, for a brief second the dwarf stand-in (with a cheap blond wig) is visible.
Angel and Spike are seen with Gunn outside in the sun Angel and Spike would have turned to dust Vampires can't be out in the sun.
In the Wolfram & Hart mystical holding dimension, when Lindsey's hand reaches for the basement doorknob, the crew and the rest of the studio are reflected in the doorknob.