#6 Seth Rollins
If Sheamus and Cesaro can enter the Rumble match despite being in a Tag-Team Title match later on in the night, then why can't 'The Architect' Seth Rollins? As Rollins surprised everyone by entering only his second Royal Rumble match ever.
Thankfully for the WWE Universe, Seth Rollins' current tag-team partner Jason Jordan didn't go on to appear in the match, ending the run of complete surprise tag-teams entering 2018's Rumble.
Edited by Nishant Jayaram