How many movies have Kelly Hu and Vincent Martella acted in together?

They have worked on 5 movies together! Their first movie together was Batman: Under the Red Hood (2010) while their highest rated movie together was Phineas and Ferb: Night of the Living Pharmacists (2014). They have not worked together since Phineas and Ferb the Movie: Candace Against the Universe (2020). They are most known for their animation films together.