Ebony Maw

Ebony Maw is a member of the Black Order and an adopted child of Thanos with gifted telekinetic abilites.

Black Panther HISHE
Ebony Maw is seen with Cull Obsidian arriving on Earth and giving his traditional speech while walking past Black Panther, Batman, and Superman.

Avengers Infinity War Alternate HISHE
Ebony Maw was gathered with Thanos and the rest of the Black Order aboard the Statesman after defeating the Asgardians. However, as Maw gave his speech, Heimdall summoned the Bifrost which teleported Maw, The Black Order and Thanos into space, with Maw subsequently freezing.

How Avengers Endgame Should Have Ended
Maw returned to Thanos' side when Thanos ordered the Sanctuary II to fire on Avnegers HQ. After the first round of fire, Thanos asked if they were dead, to which Maw replied that the bombing caused no casualties. Angry, Thanks demanded they fire again, which Maw did, this time successful in wiping out the Avengers.