Camara scored in his first start for the Blades in last week's win over Peterborough, but is struggling with a hamstring injury.
Wolves goalkeeper Ikeme and Fulham centre-half Kallio both arrived on one-month loan deals in time to be included in Kevin Blackwell's squad.
The Blades will be without Derek Geary and Gary Naysmith, who have both encountered slight niggles on their way back from long-term knee injuries, while Lee Williamson and Ched Evans face late tests as they have both been unwell.
But Darius Henderson is available again after his one-game ban and both Nick Montgomery (knee) and Richard Cresswell (ribs) could also return.
