Suggestions by @vincentwilliamsiii

Speedy (Roy Harper)

as Roy Harper in Titans I

Froy Gutierrez

as Roy Harper in Titans I

Kid Flash (Wally West)

as Wally West in Titans I

Fred Hechinger

as Wally West in Titans I

Omen (Lilith Clay)

as Lilith Clay in Titans I

Kristen Stewart

as Lilith Clay in Titans I

Don Hall (Dove)

as Don Hall in Titans I

Corbin Bleu

as Don Hall in Titans I

Hawk (Hank Hall)

as Hank Hall in Titans I

Zac Efron

as Hank Hall in Titans I

Bumblebee (Karen Beecher-Duncan)

as Karen Beecher in Titans I

Keke Palmer

as Karen Beecher in Titans I

Malcolm Arnold "Mal" Duncan

as Malcom Duncan in Titans I

Mechad Brooks

as Malcom Duncan in Titans I

Will Poulter

as Garth in Titans I

Garth (Aqualad)

as Garth in Titans I

Robin (Dick Grayson)

as Richard “Dick” Grayson in Titans I

Tanner Buchanan

as Richard “Dick” Grayson in Titans I

Nereus

as Nereus in Aquaman II

Garth (Aqualad)

as Garth in Aquaman II