Suicide Squad: 30 Easter Eggs & References You Must See
30. Angelo
In Deadshot's prologue, we see him casually taking out a contract while talking to an unseen Gotham underworld villain and extorting him for twice the agreed price because he's a "d*ckhead". Nice business acumen there, Floyd.
Anyway, the character on the phone is called Angelo, who expresses the power of his connections and who is clearly some sort of mobster. That leads to Angelo Mirti, a member of the Falcone Crime Family who acts as the bodyguard for Falcone's daughter Sofia Gigante.
The actor behind the voice is also a Batman veteran, Robin Atkin Downes who has lent his voice to no fewer than 17 DC properties in animation, video games and live action (most recently playing Detective Bullock in The Killing Joke and doing Doomsday's vocals for Batman v Superman). Fourteen of those jobs were directly related to Batman.